The correct answer is B. 's
Explanation:
In the English language, one of the most common ways to express a noun owns something is by using the apostrophe. However, this follows strict rules, indeed in the case of singular nouns that do not end in "s" the possessive is formed by adding the apostrophe followed by an "s" or 's, for example in Maria's house. On the other hand, if the singular noun already ends in "s" only the apostrophe is added as in Charles' house. In the case of plural nouns, similar rules apply as if the noun does not end in "s" the apostrophe and the "s" need to be added as in children's needs or men's ideas. Therefore, the possessive of plural nouns that do not end in s are formed by adding 's.
1. B: perceptible
2. D: foreboding
3. A: agree
4. A: tangible
<span>Theodore Roosevelt, 26th
President of the United States, was one of the most important
and effective environmental leaders in American history. Beginning in the 1880s and
culminating with his Presidency (1901-1909), his leadership of the emerging American
conservation movement was instrumental in preserving hundreds of millions of acres of natural
and historic treasures, including forests, wetlands, endangered species, native ruins, and “natural
wonders” like the Grand Canyon</span>
