Correct Answer:
C. called off
Phrasal verbs combine a verb with a preposition or adverb, creating a new meaning. The context of a referee and rain suggests an action related to the match's status.
- “called off” is the correct phrasal verb. It means to cancel an event or activity. In this sentence, the referee canceled the match due to rain.
- “called on” is incorrect; it means to ask someone to do something or to visit.
- “called up” is incorrect; it means to summon, telephone, or recall.
- “called in” is incorrect; it means to summon for help or to report to work.