So you won't sprain any muscles or hurt yourself.
Answer:
120°F
(150° is way too hot so it's between both 135 & 120 but I would go with 120)
D. It will inhibit the citric acid cycle and oxidative phosphorylation.
An advantage would be, knowing what exactly is in the food. A lot of the time it is also healthier as well to prepare your own food then buying it done already.