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.
<span>Macbeth realizes Banquo knows too much about the witches prophecies regarding the kingship
</span>
he appears mentally unstable and guilty of murder
that Macbeth has had such fits since his youth
<span>
</span>
Answer:
B.-
Hopefully this is right BC the way you put the sentence confused me...
