Correct Answer: XSROWIVM

Solution : Given:

SEQUENCE is coded as HVJFVMXV, and the following pattern is observed:

• S (19th letter from the start) becomes H (19th letter from the end).
• E (5th letter from the start) becomes V (5th letter from the end).
• Q (17th letter from the start) becomes J (17th letter from the end).
• U (21st letter from the start) becomes F (21st letter from the end).
• E (5th letter from the start) becomes V (5th letter from the end).
• N (14th letter from the start) becomes M (14th letter from the end).
• C (3rd letter from the start) becomes X (3rd letter from the end).
• E (5th letter from the start) becomes V (5th letter from the end).

Similarly, CHILDREN will be coded as:

• C (3rd letter from the start) becomes X (3rd letter from the end).
• H (8th letter from the start) becomes S (8th letter from the end).
• I (9th letter from the start) becomes R (9th letter from the end).
• L (12th letter from the start) becomes O (12th letter from the end).
• D (4th letter from the start) becomes W (4th letter from the end).
• R (18th letter from the start) becomes I (18th letter from the end).
• E (5th letter from the start) becomes V (5th letter from the end).
• N (14th letter from the start) becomes M (14th letter from the end).

Therefore, the required code is XSROWIVM

Hence, the third option is correct.