Which letter should replace the question mark in the series: B, D, F, H, ?

D. I

Assertion (A): Water boils at 100 degrees Celsius at sea level. Reason (R): The boiling point of water decreases with altitude.

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

You receive a suspicious email asking for personal information. What is your reaction?

C. REPORT THE EMAIL TO YOUR IT DEPARTMENT OR RELEVANT AUTHORITY.

F is ranked 8th from the top and 5th from the bottom in a group. How many people are there in total?

A. 12

If 'RAT' is coded as '912', 'BAT' as '213', and 'CAT' as '312', what is the code for 'TAR'?

A. 129