Bank Corp.'s voting stock is owned by the following individuals: Farber, 25%; Farber's mother, 15%;
Farber's father, 40%; and Grosset, an unrelated person, 20%. Farber's sister sold equipment to Bank at a
loss. For the purposes of determining whether the sister's loss is deductible under the related party rules,
what percentage of Bank's stock, if any, does the sister constructively own?
A.0%
B.25%
C.55%
D.80%