Identify the correct sentence.
A. Where is the necklace from your sister and the earrings from your cousin?
B. Where are the necklace from your sister and the earrings from your cousin?
C. Where are the necklace from your sister in addition to the earrings from your cousin?
D. Where are the necklace from your sister plus the earrings from your cousin?
Think about subject-verb agreement.
If the subject is singular (1), then it needs a singular verb.
If the subject is plural (2+), then it needs a plural verb.
http://owl.english.purdue.edu/owl/resource/599/01/
Think also about compound subjects:
http://www.chompchomp.com/terms/compoundsubject.htm
so its B?
To identify the correct sentence, we need to look at the subject-verb agreement.
Option A: "Where is the necklace from your sister and the earrings from your cousin?" - This sentence is incorrect because the verb "is" does not agree with the plural subject "necklace" and "earrings."
Option B: "Where are the necklace from your sister and the earrings from your cousin?" - This sentence is correct. The verb "are" agrees with the plural subject "necklace" and "earrings."
Option C: "Where are the necklace from your sister in addition to the earrings from your cousin?" - This sentence is incorrect. It has a redundant use of "are" and does not have proper subject-verb agreement.
Option D: "Where are the necklace from your sister plus the earrings from your cousin?" - This sentence is incorrect. It also has a redundant use of "are" and does not have proper subject-verb agreement.
Therefore, the correct sentence is B. "Where are the necklace from your sister and the earrings from your cousin?"