Question

molly, who is mikes little sister, has won a scholarship. restrictive nonrestrictive no added clause

Explanation:

A nonrestrictive clause provides extra information about a noun and is set off by commas (or in this case, the structure of the sentence). The clause "who is Mike's little sister" gives additional info about Molly and isn't essential to identify her, so it's nonrestrictive. Restrictive clauses are essential for identification, and "no added clause" doesn't apply here as there is a clause.

Answer:

B. nonrestrictive