Choose the correct sentence: This is the cow that low., This is the cow that lows., This is the cow that lowing., None of these

Choose the correct sentence: This is the cow that low., This is the cow that lows., This is the cow that lowing., None of these

Explanation

This is the cow that lows.

"Cow" is singular, so the verb must be "lows" (singular form).

"That" is correctly used for animals in defining clauses.