C is the most assertive refusal of all the examples, and it is also the safest. Bravo to Lindsay for not allowing people under the influence drive her around, it isn't a good idea to use subtances and operate machinery. Hope this helps!
A vaccination can produce immunity to smallpox
Answer: The nervous system
Explanation:
The first part of the embryo to develop is the neural tube, which will become the spinal cord and brain. As the nervous system starts to develop, the tiny heart starts to pump blood, and other parts of the body—such as the digestive tract and backbone—begin to emerge.
