Answer:
Becuz its very delicate and can burst anytime!!!!!!!!!
Children will react as they will be astonished (surprise) that ship which only sail in water how can it be stuck in between 2 rocks as in sea there is no rocks
The correct answer is A. reliable.
The writer was 'an authoritative source' because of her degrees, guest appearances, etc. Thus, she was a source you could rely on, she was reliable, given that she had experience to back her ideas up. Therefore A is the only correct answer.