Based on the excerpt, this part of a letter is called the: C. body.
Generally, there are four (4) main parts of a letter and these include the following:
In English literature, the body of a letter comprises a detailed information about the subject matter or topic being discussed.
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Complete Question:
Read part of a letter
I believe our school should promote Earth Day
activities. We could encourage efforts to walk to school,
and we could dedicate the afternoon to tending our
school grounds.
This part of a letter is called the? heading. salutation. body. closing.