Vote: where does a "show all" link go?

gistfile1.md

You're building an assets inventory for your company.

A common operation is to look at a specific person, place, or asset to get more detailed information about it, and then go back to the list of all the things of that kind.

Where should you put the "show all" link? Please vote below for (a), (b), or (c).

• Choice A: Near the title of the item you're viewing?

  _________      _________      _________
 /         \    /         \    /         \
/  Assets   \  /  Places   \  /  *People* \
+------------------------------------------+
   Oprah Winfrey (show all people)
+------------------------------------------+
| job:    talk show host, media mogul
| age:    57
+------------------------------------------+

• Choice B: In the tab that the item belongs to?

  _________      _________      ____________________
 /         \    /         \    /                    \
/  Assets   \  /  Places   \  /  *People* (show all) \
+----------------------------------------------------+
   Oprah Winfrey
+----------------------------------------------------+
| job:    talk show host, media mogul
| age:    57
+----------------------------------------------------+

• Choice C: Not shown at all? (That is, the only way to get back to the full list is to click the tab itself.)

  _________      _________      _________
 /         \    /         \    /         \
/  Assets   \  /  Places   \  /  *People* \
+------------------------------------------+
   Oprah Winfrey
+------------------------------------------+
| job:    talk show host, media mogul
| age:    57
+------------------------------------------+

Please vote for (a), (b), or (c).

I prefer, in order, choices A, C and as the last resort B. Choice B is least desirable because it will inevitably be inconsistent. Some tab content may narrow down while others won't. Option C works, but I wouldn't be surprised if users backed out even further in the app and didn't now they could click the active tab again.

I like option A because it says what it does and the action is close the narrow data set.

   _________      _________      _________
 /  Assets   \  /  Places   \  /  *People* \
+-------------------------------------------+
   Oprah Winfrey
+-------------------------------------------+
| job:    talk show host, media mogul
| age:    57
+-------------------------------------------+
                  Show All
+-------------------------------------------+
 

In order of preference I say C, B, then A. I think if you include a tooltip of some type people will learn the UI soon enough.