Correct answer: C). Annuity
An annuity is a long term investment option that is issued by the insurance company. It can be used as a part of a retirement strategy. Through the annuitization, the amount that one contributes is converted into a periodic payment after retirement that can last for life.
The main purpose of the annuity is to provide income support to an individual during the retirement year.
Hence, the correct answer would be option C.