Assertion (A): All dogs are mammals. Reason (R): Mammals are animals that give live birth. Which of the following is correct?

B. BOTH A AND R ARE TRUE, BUT R IS NOT THE CORRECT EXPLANATION OF A.

If M + N means M is the daughter of N, M - N means M is the son of N, and M × N means M is the wife of N, what is the relationship of O if M + O - N?

B. O IS THE DAUGHTER OF N

If the letter 'E' is coded as 5, what would be the code for the word 'HELLO'?

A. 8-5-12-12-15

Find the odd number pair from the following options.

D. (9, 18)

In the sequence 0, 1, 1, 2, 3, 5, how many times does the number 1 occur?

B. 2