Answer:
A: A new blood test makes it easier-and safer-to detect concussions.
Explanation:
The main idea of the passage is A new blood test makes it easier—and safer—to detect concussions.
Notice the phrases question the use of and proposed an alternative way. They suggest that the main idea involves a possible solution to a problem. Here, the main idea is that the problem of detecting concussions without radiation could be solved by a simple blood test.
Answer:
"<em>So exhausted and battered it barely stirred</em>" works as a great replacement for "<em>Its dark eyes dim and not at their prime</em>."
Explanation:
Both metaphors refer to exhaustion and a feeling of "nothingness."
Most commonly "C", because they would want the reader to understand that something is different. Yes, they can change the style whenever they want to, but it would be more meaningful if they did it for a reason.
Second paragraph, and all except the first sentence. Hope i could help! :) <span />
Answer:
made , were, had or failed , was, yesterday, was, had,
