“A ___ in a flue were imprisoned, so what could they do?”

Trivia: “A ___ in a flue were imprisoned, so what could they do?”

Flea and a fly
Gaggle of geese
Flock of pheasants
Dish and a spoon

The correct answer is Flea and a fly

So why is this answer correct? : This 20th-century poem by Ogden Nash doubles as a tongue twister in which a flea and a fly are trapped in a chimney, but ultimately find an escape route through a crack. “A flea and a fly in a flue / Were imprisoned, so what could they do? / Said the fly, ‘Let us flee!’ / ‘Let us fly!’ said the flea / So they flew through a flaw in the flue.”