Support Roberto's reasoning in the following scenario. Situation: Roberto works for Nature's Most Awesome, an organic snack company, and he is getting ready to lead market testing for its new chips.
He notices the closest competitor has ramped up advertising in recent weeks and suggests to his boss to push up the release of Nature's Most
Awesome chips.

Melanocytes and keratinocytes work together in protecting the skin from uv damage when keratinocytes a. provide the melanocyte with a protective shield against abrasion b. maintain the appropriate temperature so the product of the melanocyte will not denature c. maintain the appropriate ph in order for the melanocyte to synthesize melanin granules d. accumulate the melanin granules on their superficial portion, forming a uv-blocking pigment layer