The correct answer is B. Rs 1,000.00.
The current option price is the price that an option holder would pay for the option today. It is calculated by taking the present value of the future payoff of the option and discounting it back to the present using the risk-free rate of interest.
In this case, the present value of the portfolio is Rs 1,300 and the current value of the stock in the portfolio is Rs 2,300. This means that the option holder would expect to receive Rs 2,300 in the future if they exercised the option. The risk-free rate of interest is 5%.
The current option price is therefore calculated as follows:
Current option price = Present value of future payoff of option / (1 + risk-free rate of interest)^time to expiration
= Rs 2,300 / (1 + 0.05)^1
= Rs 1,000.00
Option A is incorrect because it is the total value of the portfolio, not the current option price. Option C is incorrect because it is the average of the current value of the stock and the current option price. Option D is incorrect because it is the current value of the stock, not the current option price.