Question

thomas edison is regarded as one of the most important inventors in us history. having received little formal schooling, edison relied on specialist employees at his various laboratories and offices to complete the technical work for many of his inventions. william joseph hammer was a laboratory assistant who worked at the menlo park laboratory. he is best known for curating the most comprehensive collection of historic light bulbs anywhere in the world. william symes andrews was an electrical engineer who worked at the edison electric light company. he is best known for establishing more than thirty power plants across new york and pennsylvania. which choice most effectively uses information from the given sentences to emphasize edisons reliance on hammer? a. william joseph hammer, a laboratory assistant, worked at the menlo park laboratory. b. william joseph hammer, a laboratory assistant, was known for his valuable contribution to the field of technology. c. most of thomas edisons employees had successful careers independent of working for him; for example, william joseph hammer, who worked at the menlo park laboratory, was an accomplished laboratory assistant. d. having received little formal education, thomas edison depended on specialized employees, including laboratory assistant william joseph hammer, for many of his inventions.

Explanation:

• Option A only mentions Hammer's work location without emphasizing Edison's reliance.
• Option B focuses on Hammer's contribution to technology, not Edison's reliance.
• Option C talks about employees' independent careers, not Edison's reliance on Hammer.
• Option D combines Edison's lack of formal education (so he needed help) and his dependence on specialized employees including Hammer for inventions, effectively emphasizing the reliance.

Answer:

D. Having received little formal education, Thomas Edison depended on specialized employees, including laboratory assistant William Joseph Hammer, for many of his inventions.