The student picked <em><u>his or her</u></em> own backpack and ran to math class.
Explanation:
Pronouns are those words that we use to replace nouns. This is to avoid the repetition of the nouns and to make the sentence smoother and easier to understand.
In the given sentence, the main subject is "the student". Now, we cannot know what is the gender of the student but it is understood that it will be either he/ she, which makes the required pronoun include both genders. And on that note, the pronoun for the 'student' will be used in the possessive determiners (his/ her) instead of the personal pronoun (he/she) forms.
While he was fighting with tenacity , a solar eclipse occurred. What do you think ? It's kind of weird to make a sentence with those words..... Greetings !
C) I dont really understand your story. If you wanted to make it sound fancy then C) I’m finding it really difficult to interpret the concept of your story Hope this helps