While researching a topic, a student has taken the following notes:
<ul> <li>In 1928, Alexander Fleming discovered penicillin's antibacterial properties.</li> <li>Fleming was unable to mass-produce or stabilize the compound.</li> <li>He published his findings but the work was largely overlooked for a decade.</li> <li>In 1939, Howard Florey and Ernst Chain at Oxford developed methods to purify and produce penicillin.</li> <li>Their work led to mass production by 1943, saving countless lives in WWII.</li> </ul> The student wants to emphasize the gap between discovery and practical use. Which choice most effectively uses relevant information from the notes to accomplish this goal?Which choice most effectively makes the student's point?
- A
Fleming discovered penicillin's antibacterial properties in 1928 and published his findings.
- Bcheck_circle
Although Fleming discovered penicillin in 1928, more than a decade passed before Florey and Chain developed methods to mass-produce it.
- C
Florey and Chain developed methods to purify penicillin starting in 1939.
- D
Mass production of penicillin saved countless lives during WWII.
Explanation
The goal is the gap between discovery and use. Choice B explicitly bridges 1928 discovery with the decade-later production work. A omits the gap, C and D omit the discovery side.