Nikhil is looking for tax-efficient savings methods for his disposable income. He is considering an equity-linked savings scheme, national savings certificates and an endowment insurance policy. Premiums for which of these investments are allowed to be deducted from his taxable income?

A. The national savings certificates only

B. The equity-linked savings scheme and the national savings certificates only

C. The national savings certificates and the endowment insurance policy only

D. The equity-linked savings scheme, the national savings certificates and the endowment insurance policy

Answer: Option D