Since, options have not been given the question is incomplete. The complete question is as follows:
A 10 year-old has thick, demarcated plaques on her elbows. Which features are suggestive of psoriasis?
Scaly lesions on the scalp
Pruritis around the lesions
A scaly border around the plaques
Silvery scales that are not pruritic
Answer: Silvery scales that are not pruritic
Step-by-step explanation:
Psoriasis is a immune disease. It causes raised, red and scaly patches on the skin. This first affects to the elbows, scalp, knees and later spread to all the other parts of the body. The scales may be itchy, and may produce burning sensation. In case of Plaque psoriasis silvery scales develop all over the body which are not pruritic that means they do not produce desired unpleasant sensation that provoke the desire to scratch. These may crack and bleed.