Question

NEED HELP PLEASE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Which sentence is punctuated correctly?
A.
However the average, world, temperature has continued to rise, significantly.
B.
However, the average world temperature has continued to rise significantly.
C.
However the average world temperature has continued to rise significantly.
D.
However, the average, world temperature, has continued, to rise significantly.

Answer 1

I believe that B. However, the average world temperature has continued to rise significantly. is correct.

Answer 2

Answer:

B. However, the average world temperature has continued to rise significantly.

Explanation:

"However" is an introductory word joined to an independent clause, so it needs a comma after it. Also, don't forget the period at the end of the sentence.

This is for Study Island on Punctuation.