Question

on july 26, 1971, the apollo 15 mission launched with a new feature: the lunar roving vehicle, allowing astronauts to explore farther distances on the moon. this technological feature was not the first time nasa expanded astronaut mobility, as earlier missions such as gemini iv in 1965 had already tested extravehicular activity to extend human movement beyond the spacecraft. ____ across more than three decades, nasa repeatedly invested in technologies that steadily increased the scope, duration, and effectiveness of human space exploration.
24 mark for review
which choice completes the text with the most logical transition?
a that said,
b ultimately,
c whats more,
d also,

Explanation:

To determine the logical transition, we analyze the context. The previous sentences discuss NASA's past efforts to expand astronaut mobility (Apollo 15, Gemini IV). The sentence after the blank shows a broader, over - three - decades investment in technologies for space exploration. "Ultimately" is used to show a final result or a conclusion of a series of actions. The earlier missions and the Apollo 15 mission are part of a series of efforts, and the investment over three decades is the overall result of these efforts.

• Option A "That said" is used to introduce a contrasting or qualifying statement, which does not fit here.
• Option C "What's more" and Option D "Also" are used to add additional information, but the sentence after the blank is more of a conclusion about the overall effort over time rather than just adding more details.

Answer:

B. Ultimately,