Very likely A. Take a pill because people who are lactose intolerant take lactase before they ingest any sort of food with lactose. You would not have to avoid it that way and you would be able to still intake calcium through lactose/dairy products.
Its a hard decision but i would choose c :/
The 650 skeletal muscles in the human body contract when they receive signals from motor neurons, which are triggered from a part of the cell called the sarcoplasmic reticulum. Motor neurons tell your muscles to contract and the better you become at having those signals tell your muscles to contract, the stronger you can get.
Seat belts
Control
Awareness