A Newly Admitted 86-Year-Old Patient Has Scratch Marks in the Groin

A newly admitted 86-year-old patient has scratch marks in the groin and axilla and on her limbs.There are small,punctate red lesions that the patient says itch "like crazy." Which is the most likely cause and the best nursing action?

A) Senile purpura, and employs skin tear precautions
B) Scabies, and employs Standard Precautions
C) Senile itch, and employs use of emollient
D) Allergy, and employs focused assessment for cause