Identify if the three sentences are reliable or unreliable.

A. The first pioneers to explore the opal fields found an unpleasant and unfriendly envirc
B. None of the pioneers liked summer because it was dreadfully hot.
C. To adapt to the challenging environment, pioneers built underground homes.
(1 point)

A. The first pioneers to explore the opal fields found an unpleasant and unfriendly environment. - Reliable.

B. None of the pioneers liked summer because it was dreadfully hot. - Reliable.
C. To adapt to the challenging environment, pioneers built underground homes. - Reliable.