Simple Accordion for Bootstrap 4 + Advanced Custom Fields

ACF Accordion Bootstrap 4

<div id="accordion" role="tablist" aria-multiselectable="true">
	<?php if( have_rows('service_accordion', 'options') ): ?>
	<?php $i=0; while ( have_rows('service_accordion', 'options') ) : the_row(); ?>
	<?php $string = sanitize_title( get_sub_field('service_title', 'options') );
		$service_content = get_sub_field('service_content', 'options'); ?>
		<div class="card">
			<div class="card-header" role="tab" id="headingTwo">
				<h5 class="mb-0">
					<a class="collapsed" data-toggle="collapse" data-parent="#accordion" href="#<?php echo $string ?>" aria-expanded="false" aria-controls="<?php echo $string ?>">
							<?php the_sub_field('service_title', 'options'); ?>
        			</a>
      			</h5>
    		</div>
			<div id="<?php echo $string; ?>" class="collapse" role="tabpanel" aria-labelledby="<?php echo $string; ?>">
				<div class="card-block">
						<?php echo $service_content; ?>
        		</div>
	  		</div>
	  	</div>
  <?php $i++; endwhile; ?>
	<?php endif; ?>
</div>

Does this require setting up an ACF field as an "accordion" type or "repeater" type?