Answer: Option C
Answer: (c)My parents have done this to help you in your financial crisis. (a) This have been done by my parents to help you in your financial crisis. (Incorrect helping verb) (b) This is been done by my parents to help you in your financial crisis. (Tense has changed) (c) This has been done by my parents to help you in your financial crisis.(Correct) (d) This is to be done by my parents to help you in your financial crisis. (Meaning of sentencechanged)