Let's--Jim and invite him to play football.A.called B.call a

Let's__Jim and invite him to play football.A.called B.call at C.call up D.call on
Let's__Jim and invite him to play football.
A.called B.call at C.call up D.call on
为什么答案选C 说什么因为祈使句.
但是 第一搭配是call sb.up,还有为什么不能选A?