Read each sentence and decide whether the underlined portion contains a mistake. if it does, identify the best 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.

bring me the potted plant, /which i previously leaved in the den.\

which i left in the den.

which i have, in the past, leave in the den.

which, in the den, did i leave.

what was formerly in the den.

no improvement or correction is required.