Final answer:
In his autobiography, Benjamin Franklin reflects upon his time with his brother who printed newspapers. The correct answer is d. his time with his brother who printed newspapers.
Step-by-step explanation:
Benjamin Franklin reminisces about his formative years with his brother, a printer of newspapers, as evident in his autobiography.
Franklin's immersion in the printing industry and his notable publication, Poor Richard's Almanack, commencing in 1733, highlight this period of his life.
Working alongside his brother provided Franklin with invaluable experience in the intricacies of the printing business, profoundly influencing and shaping his subsequent career trajectory.
This period of apprenticeship and involvement in the newspaper industry laid the foundation for Franklin's future endeavors, showcasing the pivotal role his early experiences played in shaping his identity as a printer, writer, and influential figure in American history.
Therefore, the correct answer is d. his time with his brother who printed newspapers.