$1\mathrm{.}7.$ Suppose that you write a put contract with strike price Rs$.40$ and expiration date in $3$ month. The current stock price is Rs$.41$ and the contract is on $200$ shares. What is your commitment and how much could you gain or lose?

$1\mathrm{.}8.$ What is the difference between the over$-$the$-$counter market and the exchange$-$traded