I would say the answer is d. just as
This is because you are comparing the similarities between two things. The other words either contrast the two things or explain the relationship instead of comparing it.
It would Be D glad to help! ;)
Ad verbs
I think maybe give a second to check
Answer:
For fear of retaliation against them.
Explanation:
Douglas wouldn't want fot the boys who taught him how to read to get in trouble on his behalf. He was afraid that they would be repremended or punished for having taught him how to read.