A participle is a word group consisting of a present participle, which is a word that acts as an adjective and usually ends in -ing. In this case, your answer would be the second option, T<span>he huge crowd, having listened intently to the concert, clapped enthusiastically when the musicians bowed.</span>
A. It is indeed a pun. The writer's purpose of this may have been to teasingly warn a character. You can easily cancel out the other answer options as well.