Michael bought a new microwave from the GoodBuys electronic store. From the outset, it started giving him problems. A couple of days later, he was unable to get it to work at all

A few days later he found out that two colleagues encountered similar glitches with the identical microwave, which they, too, bought from GoodBuys. Michael did find out that several friends who had bought that same microwave online or from different electronic stores, however, did not have any trouble it.
What conclusion did Michael arrive at, and how?
a) Michael used inductive reasoning by concluding that buying those microwaves from the Goodbuys electronic store was a mistake
b) Michael used deductive reasoning by concluding that buying those microwaves was possibly not a good idea.
c) Michael used either/or fallacy by concluding that buying those microwaves online would lead to the delivery of faulty products.
d) Michael used hasty generalization by concluding that buying those microwaves from electronic stores would cause much frustration.

A