If a noun refers to a job or occupation, it is a ……….. a.
common noun and is capitalized

b.
proper noun and is not capitalized

c.
proper noun and is capitalized

d.
common noun and is not capitalized

d.  common noun and is not capitalized

Explanation:

Whether or not occupation titles should be capitalized depends a lot on context. Although formal job titles should be capitalized, references to a profession are common nouns and therefore should not.

As long as the reference to someone´s occupation appears anywhere, either separated by commas or earlier or later in the sentence, lowercase letters should be used.

why does the crew join ahab's quest without hesitation?