Choose the option that adds the correct question tag to the following statement-
She cooks well, ________?
a) Can she
b) Can’t she
c) Does she
d) Doesn’t she

Hint: A question tag is a grammatical structure in which a declarative or an imperative statement is turned into a question by the addition of an interrogative fragment.

Complete answer:
 The term "question tag" is generally preferred by British grammarians, while their American counterparts prefer "tag question". For example: in the sentence "You're John, aren't you?", the statement "You're John" is turned into a question by the tag "aren't you". In the given question, we have to complete the statement by adding a question tag.
Now, let us examine all the given options to find out the correct answer :
Option ‘a’ is Can she. This tag cannot be used in the given statement, as we don’t use ‘can' with ‘she’ in question tags. So, we will eliminate this option.
Option ‘b’ is Can’t she. This tag is also not the correct tag as it cannot be used in the given statement.
Option ‘c’ is Does she. This tag is not suitable for the given statement, as we cannot use ‘does’ in the given statement. So, we will eliminate this option as well.
Option ‘d’ Doesn’t she. We can use this tag in the given statement. We can use ‘doesn’t' with ‘she’.
As we have analyzed all the given options, we can easily figure out the correct answer. Here, the correct question tag to be filled in the given statement is – doesn’t she? The complete sentence would be – She cooks well, doesn’t she? Hence, option ‘d’ is the correct option.

Note:
One rule for solving question tag questions is that when the given statement is positive, the question tag would be negative, whereas if the statement is negative, the question tag would be positive.