The right answer is 3. Spruce.
Sexual reproduction has the advantage of producing genetic diversity in the offspring (as we see it for example in humans) due to the crossing of two gametes of two different individuals as well as the genetic recombination that occur before fertilization.
Of the four propoitions, only one reproduces sexually, and that is the spruce.
The spruce is part of the genus Picea which includes conifers comprising about fifty species.
DNA it is a string of dna which can be prooved anytime or you can call it DNA replication
