Answer:
Option C, Deanne
Step-by-step explanation:
Deanne is the consumer out of the three. A consumer is one who consumes either goods or services. Deanne purchases clothes from the boutique of Katerine , thus she is the consumer.
Katherines is the seller who is selling clothes in her boutique
And Clara is a paid employee employed by katherines in her botiques for assisting her in regular works.
Thus, option C is correct.