Answer:
A) three tercets
Step-by-step explanation:
This line is the first line of the short poem called "Counting Small-Boned Bodies" which has ten lines, referring to the horror of the Vietnam War. The mentioned first line is followed by three tercets, each of which starts with the same line, that is, the tercet is a group of three verses that rhyming together or are connected by a rhymes with the adjacent tercet.
Each of the three tercets starts with the line "If we could only make the bodies smaller", which here emphasizes ironic lyricalism, which follows the terrible changes of the natural world.
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