Chinese Test: The London Olympics are coming. (Elementary)

Elementary Level 初级 (chūjí)

Conversation:

        Tīngshuō Lúndūn Àoyùnhuì kāimùshì huì hěn jīngcǎi. Eric: 听说           伦敦      奥运会     开幕式 会   很   精彩。

         Shì a, wǒ yǐjīng mǎi dào ménpiào le. Tom: 是啊,我已经   买    到      门票   了。

What does “开幕式 (kāimùshì)” mean here?

A. opening ceremony

B. closing …