The answer based on the original statement is A: 2 only.
Step-by-step explanation:
It might seem obvious to be D, becasue we both know that all of the statements are true. But, based on the statement, we don’t necessarily know that. The statement only tells us that if a angle is 90 degrees it is a right angle. It does not specify if another angle such as 91 degrees would also be considered a right angle. Therefore, we would not be able to draw any other conclusions other than number 2 based on the statement given in the question.
