There are four animals: a dog, a cat, a bird, and a fish. The dog is a mammal, the cat is a mammal, the bird is not a mammal, and the fish is not a mammal. Which of the following is true?

D. DOG AND CAT ARE MAMMALS

A is the son of B. C is the daughter of B. D is the wife of A. How is C related to D?

A. SISTER-IN-LAW

Assertion (A): All mammals are warm-blooded. Reason (R): Warm-blooded animals can regulate their body temperature. Which of the following is correct?

A. BOTH A AND R ARE TRUE, AND R IS THE CORRECT EXPLANATION FOR A.

A project starts on January 10, 2023, and is scheduled to last for 90 days. What is the end date of the project?

A. APRIL 10, 2023

How many times does the letter 'A' appear in the series: A, B, A, C, D, A, E?

B. 3