Explain the reproductive advantage that an angiosperm (like apple trees) would have over mosses

Angiosperm is being referred to as seed-producing plants.

They are being distinguished from other gymnosperms by characteristics which include

1. endosperm within the seeds.
2. production of fruits which contain seeds and also the flowers.

Angiosperm they have an advantage from mosses in that, Angiosperm does not rely on water for fertilization to take place but mosses they do rely on water for the flowers to attract animals and function as dispersal agent to attract animals.

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The answer is option b.