Wheat Is a Group of Grass Species

Wheat is a group of grass species. Cultivation originated in the eastern Mediterranean about 10,000 years ago. In comparison to closely related wild grasses, cultivated wheat has shorter stalks and fewer, larger seeds that are firmly attached to the stalk (e.g., they don't easily blow away in the wind) . These changes are useful for humans, but will they increase or decrease the fitness of cultivated strains of wheat in their natural environment?

A) Fitness is increased because the dispersal of embryos is reduced.
B) Fitness is increased because cultivated individuals produce more offspring.
C) Fitness is decreased because more energy is devoted to trying to grow longer stalks.
D) Fitness is decreased because the seeds are not dispersed.