You are holding 800 shares of Infosys Ltd. (US ticker: INFY) and you would like to hedge it in a delta-neutral way. The INFY call option you select has a delta of 0.64.

Due to the INFY call options gamma, an increase in the underlying stocks price has caused the options delta to increase to 0.8. How would you restore the portfolios delta neutrality?

A) Buy to close 250 of your short INFY call options

B) Sell to open an additional 250 INFY call options

C) Buy an additional 200 INFY shares

D) Sell 200 of your INFY shares

E) Either A or C

Please show calculation/Explanation