A the answer is A
it is because if you said
when they heard our play at the concert it does not make sense try all of them and see if they make sense
Answer:
because I machine washer can last longer than a snack, there for the machine washer has more purpose and is more expensive
Explanation:
I would consider it a mood because it can change over time.
EX: You can be enthusiastic one moment, then sad the next.
Pros
it keeps the editors safe
if they make a mistake people can't come after them
people cannot communicate with them over subjects they have written about
cons
people can't give feedback to let them know if it is incorrect
editors can make things up on a page and fool many people