Answer:
it generates NADH for use in mitochondrial ATP production
Say you are a surgeon that wears a lot of jewelry. As you are performing a surgery, a ring falls off of your finger, and you don't realise until after you suture the patient up. Now they can sue for damages, and medical malpractice. You would loose your job, licence, and self-respect. All over a ring.
Primary growth or lengthening of plants results from mitotic division in cells of the apical meristem tissue. The apical meristem can be found in the top of plants. When the plant divides, it helps to lengthen it. The correct choice is C.