Which of the following is an example of a noun suffix?

The correct choice is "Less from hope" because "less" is a suffix that can be attached to nouns to imply a lack of something; for example, "hopeless" indicates a lack of hope. In this case, "less" serves as a suffix that modifies the meaning of the base word, transforming it into another noun form.

In contrast, while "Ful from care" refers to the suffix "-ful", which can also convert nouns into adjectives, it does not demonstrate a noun suffix specifically. "Act from argue" is not an example of a suffix, as "act" typically functions as a root word related to actions rather than a derived form. Similarly, "En from soft" would illustrate a verbal transformation (as in "soften"), which does not pertain to a noun suffix either.