Please help due in a lil bit.

Organisms within a population must compete for resources to survive

Groups of organisms with low biotic potential, such as gray whales, that produce at most one offspring every other year a) are r-selected b) are k-selected c) are not subject to density-dependent limiting factors d) show the initial stages of the extinction process e) have escaped from the processes of natural selection and adaptation

What is the term for the two sets of chromatids formed in the parent cell a.haploid b.diploid c.gamete d.tetrad