Which of the following parts of an essay contains a topic sentence? A. body
B. introduction
C. all of the these
D. conclusion

may i have brainllest plzz*

Explanation:

A topic sentence should contain the main idea of the paragraph, and should follow the same rules as the thesis statement. Writers should start by writing down one of the main ideas, in sentence form; the topic sentence should frame the paragraph

the president was the speaker and it was a great part of history.

explanation:

video of the national aeronautic space administration's (nasa) coverage of president john f. kennedy’s address at rice university, houston, texas, concerning the nation's efforts in space exploration. in his speech the president discusses the necessity for the united states to become an international leader in space exploration and famously states, "we choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard."

i believe the answer is d : )