Question

read the sentence from the passage.
\alien\ is how some researchers describe octopuses.
what does the word alien mean as used in the sentence?
ⓐ considerate
ⓑ pleasant
ⓒ mysterious
ⓓ unknown

Explanation:

To determine the meaning of "alien" in the context of describing octopuses, we analyze each option:

• Option a: "Considerate" refers to being thoughtful of others, which does not relate to describing octopuses. Eliminate a.
• Option b: "Pleasant" means enjoyable or agreeable, which is not relevant to the description of octopuses as "alien." Eliminate b.
• Option c: "Mysterious" implies something unknown or puzzling, but "alien" here is more about being unfamiliar or unknown in nature. However, "unknown" (option d) is a better fit. Wait, re - evaluating: Octopuses are often considered "alien" in the sense of being unknown or foreign - like in their nature. "Unknown" (d) is more accurate as "alien" in this context suggests something that is not well - known or is foreign (unknown) in characteristics. "Mysterious" (c) has a connotation of being secretive, while "unknown" is about lack of familiarity. So the correct answer is d.

Answer:

d. unknown