This should be fairly simple to set up. To do so,
(1) Work through the tutorials contained in the Inquisit documentation, and
(2) Read the "How to present stimulus pairs" topic in the how-to section.
In essence, your script will look somewhat like this:
<picture mypicture>
/ items = ("A.jpg", "B.jpg", "C.jpg")
/ select = sequence
</picture>
<text mytext>
/ items = ("Description of A.jpg", "Description of B.jpg", "Description of C.jpg")
/ select = picture.mypicture.currentindex
/ position = (50%, 75%)
</text>
<trial mytrial>
/ stimulusframes = [1=mypicture, mytext]
/ validresponse = ("D", "K")
</trial>
<block myblock>
/ preinstructions = (intro)
/ postinstructions = (end)
/ trials = [1-3=mytrial]
</block>
<page intro>
^instructions go here
</page>
<page end>
^the end
</page>