Much to our ______, John was finally persuaded to join in our travel to the South Pole.

A．delighted

B．delighting

C．delight

D．delights

王某利用极端主义胁迫多名群众破坏《反恐怖主义法》的实施，王某涉嫌宣扬极端主义、煽动实施恐怖活动罪。