Read the following quotation. others is the key to happiness. think carefully about this statement. write an essay explaining your own ideas about the key to happiness. be sure to— clearly state your thesis organize and develop your ideas effectively choose your words carefully edit your writing for grammar, mechanics, and spelling

To my opinion, the key to happiness is inside all of us.
First of all, happiness comes from inside, and even if it could depend on exterior factors, we will not be happy unless we know where to find it. Most of us think that if we buy what we wish the most, or if we are rich, we are happy. But it is just a misconception. Happiness does not depend on objects, but on feelings.
Secondly, happiness is just like a locked door. To find the key to it, we find the door first, and to do that, we just need to know ourselves better. To help people, and by seeing their smiles, we will feel a warmth inside. That is happiness. 
There is not just one key - people are all different, and each of them has a different key, a different purpose, and a different door to open.
Happiness is a choice. And when we realise this, we are very close to find its key too.
To sum up, I would say that all we have to do in order to find the key to happiness is to open our eyes properly, and to see what the majority cannot see. 

Answer might be b. i think