GMAT Sentence Correction (SC) | Re: QOTD #14 James had just walked into the bank and that was when he got

Hi,thanks for the question
Please correct me if I'm wrong.
The meaning is that James just walked in the bank,and at the same time he got a message about something.

(A) and that was when he got a message
-- wrong."That" can't not refer to "James had just walked into the bank"

(B) and then he got a message
-- wrong. This me James walked into the bank and then got a message.
(C) when a message was
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