Question

read each sentence and decide whether the underlined portion contains a mistake. if it does, identify the way to correct or improve the sentence by choosing the appropriate alternative from the answer choices. if the underlined portion requires no correction or improvement, choose no improvement or correction is required. my dad is visiting his sister, which moved to utah.
○ who moved to utah.
○ that moved to utah.
○ what moved to utah.
○ whence moved to utah.
○ no improvement or correction is required.

Explanation:

The underlined part "which moved to Utah" is incorrect because "which" is used for non - human things or animals, while "his sister" is a person. We should use "who" to refer to people in relative clauses. "That" can be used for people in restrictive relative clauses, but in this context, "who" is more appropriate for referring to a person. "What" and "whence" are not used to refer to people in this kind of relative clause.

Answer:

A. who moved to Utah.