The conventional rule is to take the plural form of the verb when two nouns are joined by the conjunction 'and'. However, there are exceptions. Only then can you break the rule.
When the two nouns refer to one thing only, then you can use the single form. For example: The president and the CEO joins the meeting today. In this example, the president and CEO apply to one person only. Hence, you use the singular form of the verb.
Answer:
D. A reference in a piece of literature to another literary work
Since a predicative nominative is the first noun after a linking verb (in this case 'is'), the correct answer is A, 'award'.
Well,
"Chem" is usually capitalized. But I believe it is the short form of the subject, Chemistry.
