Interchange Interrogative and Assertive sentences:
Will he ever forget that incident?
A) He will forget that incident.
B) He will never forget that incident.
C) He will never forget that incident, will he?
D) None of the above

Hint: An assertive sentence ends with a period (.), not a question mark. The rule of assertion from interrogation states that if the sentence is in the affirmative you have to change it into negative assertion.

Complete answer:
Here we need to change an interrogative sentence into an assertive sentence. An interrogative statement is punctuated at the end with a question mark. Whereas,.] An assertive sentence ends with a period (.)

As the rule of assertion and interrogation states that if a sentence is affirmative then it changes to negative and if it is negative then it gets converted to an affirmative state.

>Option A is not the correct answer, as according to the rule; the assertive statement should change into a negative assertion, which is not the case in this option.
>Option B is the correct answer. As the rules stated, the affirmative interrogation changed to the negative assertion. Thus it follows the rule and the word ‘ever’ is replaced by ‘never’ just as how the rule states.
>Option C is not the correct answer. As it needs to be changed into an assertive sentence; an assertive sentence ends with a period (.) but here it ends with a question mark. Thus, it cannot be called an assertive sentence.
>Option D is not the correct answer, as we have an option that contains the correct transformation.

Option A, ‘He will never forget that incident.’ is the correct answer.

Note:An assertive sentence is this declares or asserts a statement, feeling, opinion, incident, event, history, or anything. An interrogative sentence generally asks a direct question.