Question

the student wants to specify project orions timeline. which choice most effectively uses relevant information from the notes to accomplish this goal?
choose 1 answer:
a the partial nuclear test ban treaty of 1963 brought project orion to an abrupt end.
b physicist stanislaw ulam first proposed nuclear pulse propulsion in 1946, and in 1958, project orion was born.
c project orion launched in 1958, but was effectively shut down just five years later with the passage of the partial nuclear test ban treaty in 1963.
d led by physicists ted taylor and freeman dyson, project orion lasted from 1946 to 1963, when the partial test ban treaty was signed.

Explanation:

• Option A only mentions the end of Project Orion in 1963 without its start - no timeline.
• Option B gives two dates (1946 and 1958) but not the full timeline of the project itself.
• Option C provides the start year (1958) and the end year (1963) of Project Orion, effectively specifying its timeline.
• Option D incorrectly states that Project Orion started in 1946 (it started in 1958).

Answer:

C. Project Orion launched in 1958, but was effectively shut down just five years later with the passage of the Partial Nuclear Test Ban treaty in 1963.