The correct answer is (B) To send away, to banish to some inferior or obscure place; to demote; to exile; to consign or dismiss to an inferior role, position, place, condition, etc.; to transfer, assign, or refer for information, decision, or execution.

Relegate comes from Latin relegare.

Examples of use:

• They relegated her to a minor job in an obscure branch of the bureaucracy. He has been relegated to a post at the fringes of the diplomatic service;
• He relegates those matters to a committee.