Answer:
<u>C</u>. <em>Deep sleep occurs in the first two stages of sleep.</em>
Explanation:
I believe deep sleep occurs in stage 3....i think.
The following is what is parents might be concerned about is:D. Autism spectrum disorder.
<h3>What is Autism spectrum disorder?</h3>
Autism spectrum disorder can be defined as a disability or disorder that makes it difficult for a person to communicate or interact with others.
A person suffering from autism disorder have difficult learning and understand people perspectives and they tend to find it hard relating with people.
Inconclusion the following is what is parents might be concerned about is:D. Autism spectrum disorder.
Learn more about Autism spectrum disorder here:brainly.com/question/9869588
It means that the vice president is really close to the presidency. meaning if anything happens to the president, the vice president, becomes president. they literally mean "a heartbeat away"
It’s the light coming from a star
After Augustus's death in 14 C.E., other Roman emperors ruled with varying effectiveness. ... In fact, a series of leaders known as the Five Good Emperors ruled in succession and presided over a prolonged period of peace and prosperity. The last of these emperors, Marcus Aurelius, was the final emperor of the Pax Romana.