Select the correct way to revise the sentence. A tsunami is a series of waves it can move to shore at high speeds.

a. A tsunami is a series of waves, it can move to shore at high speeds.
b. A tsunami is a series of waves. it can move to shore at high speeds.
c. A tsunami is a series of waves, It can move to shore at high speeds.
d. A tsunami is a series of waves, and it can move to shore at high speeds.
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