Answer:
b. As a result
Explanation:
Unlike the other phrases, the transitional phrase “As a result” is not used to show the cause, origin or reason of an event or of something but to indicate a consequence, effect, or outcome of something. Here are some examples of how to use them:
Sue got really ill yesterday, as a result, she will not attend this afternoon meeting.
As a result of the accident, he was out of work for three months.
