I don't know but probably c
Running is being used as a gerund working as a noun
Johan August Strindberg, was a Swedish novelist, playwright, essayist and painter. Since childhood, Strindberg had a massive interest in religion, natural science, and photography. As a child, he always longed for a maternal figure due to her mother's bitterness and resentment of his intelligence. Later, after the death of her mother, his father married again with Emilia Charlotta Pettersson. This grew anger in Strindberg.
Therefore, circumstance what caused Strindberg to cut off from his family was due to his father's remarriage after his mother's death.
Answer:
C: The speaker is intelegent and clever, but did not excel in high school.
Explanation:
This is because the entire time the writer talks about not being a loser and not doing well in highschool thus eliminating D along with B because he doesn't say much about his stepfather. It also can't be A because there was no evidence of the writer being lazy.
Also, I did it on USA test prep