An option trader buys 1 ABC April 25 put. A few months later, the trader exercises the option. The trader's net sales proceeds equal the.

[A] strike price
[B] strike price plus the premium
[C] strike price minus the premium
[D] market price of the stock when the put was exercised

[C] Strike price minus the premium

Explanation:

A put buyer refers to the one who purchases a right (and not the obligation) to sell(put) the underlying asset at a pre determined strike price/exercise price at a future date.

A put buyer is under no obligation to exercise his right of selling the underlying asset. He will exercise his right only when his strike price is greater than the current market price upon expiry of the contract.

Put Buyer's profit is expressed as;

= Strike price -  Option premium paid - Current market price upon expiry

Thus, his NET sales proceeds are equal to his Strike Price as reduced by Option premium paid.

ans.

heterothermic organisms include those organisms that can switch between homeothermic (having body temperature higher than environment) and poikilothermic (having variation in internal body temperature) strategies.

some migratory birds show heterothermy as they decrease their metabolic rate during cold nights to keep their body temperature low. drop in metabolic rate allows increase in production efficiency of birds that reduces the internal body temperature to make it equal to external cold temperature during cold nights.

thus, the correct answer is 'birds allow their temperature drop in order to increase their production efficiency.'