What is the principal part of the underlined verb in the sentence?
our mother took us to an art museum.
a.
present participle
b.
past
c.
present
d.
past participle

I can't tell which word is underlined, so I'm assuming it's took , because that is the only verb I see, If it is took, the answer is B because a past participle is a verb ending in "ed" such as jumped, licked, searched, ect. took, does not and cannot have the ending "ed" therefore, it is just past tense.

As the boys sleep, military airplanes battle fiercely above the island. none of the boys sees the explosions and flashes in the clouds because the twins sam and eric, who were supposed to watch the signal fire, have fallen asleep. during the battle, a parachutist drifts down from the sky onto the island, dead.