Available options:
(a). ice
(b). hair
(c). wool
(d). bears
(e). fur
(f). sun
(g). moss
(h). sand
Q: Fact 1: An egg requires warmth to survive. Fact 2: First the frog lays the eggs, then the warmth from the sun makes the eggs hatch into baby tadpoles. Given the two facts above, what keeps eggs warm?
A:
(f).