Advanced Custom Field – if select show picture

Hi.
Here is the posts I’m trying to fix.
https://driftmagazine.se/blog/category/foreare/datt-pro-forare/

I wold like to have a flag beside the drivers name.
So if the driver is from Sweden it will show the Swedish flag.

I use select and I wont a picture to show to each choice.

I’m imagen that it wold work like this some howe.

<?php if     <?php the_field('flagga'); ?>   choice sweden

show 

<img src="<?php bloginfo('template_url'); ?>/images/grafik/flagga-se.png" />

elseif

<?php the_field('flagga'); ?>   choice denmark

show 

<img src="<?php bloginfo('template_url'); ?>/images/grafik/flagga-dan.png" />

and so on…
But cant get it to work.