Question

The speaker spends a lot of time establishing that this attack

Answer 1

the speaker os saying it was to be expected.

Answer 2

The letter C is the correct answer

Step-by-step explanation:

The text says that the US was in a period of peace with Japan when the attack occurred. So the attack was unexpected, because as the two countries were at peace, there was no way the US could expect an attack that would cause such great damage.