Select the most appropriate option to fill in the blank. The ______ landscape…

Vocabulary-in-context (cloze) questions test whether the reader can match a missing word's meaning to the descriptive clues already given in the sentence — the surrounding details point to the semantic category the answer must belong to.

Here, the sentence gives two clues about the landscape: "sparse vegetation" (very little plant cover) and "rocky mountains" (bare, stony terrain). Together, these clues describe land with little to no plant growth, which is exactly the meaning of "barren": bare and largely unproductive for vegetation.

The remaining options describe qualities that do not match these clues:

• "vibrant" describes bright colour or lively energy, a quality unrelated to how much vegetation or rock a landscape has.

• "fertile" describes land capable of producing abundant crops or plant growth, the opposite of a landscape with sparse vegetation.

• "lush" describes vegetation that is thick and abundant, again the opposite of sparse vegetation and bare rock.

Re-reading the completed sentence, "The barren landscape was seen with sparse vegetation and rocky mountains," confirms the description is internally consistent: a landscape without significant plant cover matches "barren" in both the blank and the given clues.