Answer:
C). Analysis.
Step-by-step explanation:
'Critique' is elucidated as the literary technique in which the readers study a work carefully, analyze it meticulously, and evaluates it critically in order to reach a reasonable and justifiable conclusion, judgment, or deduction about it.
As per the question, the 'analysis' step of critique is presented through the steps mentioned here as these points imply that Karen has assessed or investigated the details of the work deeply. This is reflected through descriptions like 'layers of contrast', 'contrast of women's red and blue costume with the background', 'the colors of bodies of cherubs in contrast to the women's costume', etc. These details imply that she has examined every small detail of the work to reach a worthy and valuable conclusion(i.e. 'review' that she wrote) about the artwork. Therefore, option C is the correct answer.