Write means to use pen or pencil and make with it and right means something is correct or not wrong.

Explanation:

To understand why the correct answer is option 'B' (write), let's break down the question and the options provided.

The sentence "I will __________the essay today" suggests that the speaker is talking about completing a task related to an essay. The word that fits in the blank should indicate an action related to writing an essay.

Now let's examine the options:

a) Right: The word "right" does not convey any action related to writing an essay. It means correct or accurate, but it does not fit in the context of completing the essay.

b) Write: This is the correct answer. The word "write" indicates the action of putting thoughts and ideas onto paper or a digital document. It is the most suitable action related to completing an essay.

Therefore, the correct answer is option 'B' (write).

Summary:
- The sentence suggests completing a task related to an essay.
- The word in the blank should indicate an action related to writing an essay.
- Option 'A' (right) does not fit the context.
- Option 'B' (write) is the correct answer as it indicates the action of putting thoughts and ideas onto paper or a digital document.