How the children respond to the phrase
"horribly good"?
A
They are confused by this strange phrase and
interrupt the man to ask about it many times.
(B
They become more interested, because the
phrase is unusual and seems to suggest that
being good is horrible.
They are confused by this strange phrase and
begin to mock the man like they did to their
aunt.
They think the man must not be very smart to
think that someone could be horribly good.