Let's check your answers. There are 55 entrants, so "most entrants" would be a number ≥28.
a) 20<28, so Heather's hypothesis is false.
b) 1 fish caught+2 fish caught=12+12=24<28, so George's hypothesis is also false.
c) Opposite of Heather: Most entrants would catch fish; opposite of George: most entrants would catch more than 2 fish or none at all.
d) Opposites of both hypotheses is true.
e) Secondary, because the newspaper would have to use the primary results to report them.
f) Heather's prediction: most entrants will catch fish; George's prediction: there will be a minority of entrants who catch only one or two fish.