Answer:
d. Is Aunt Louise's house east or west of North Main Street?
Step-by-step explanation:
Capitalization is one element of grammatical construction where the use of the Capital letter for the first letter of the word is a requirement. And the use of capitalization is mainly for proper nouns in a sentence.
In the given sentence, the proper nouns are "Aunt Louise" and the address "North Main Street". This is because it is the name of a specific noun and not common or a generalization. "East" and "west" in the sentence will not be capitalized because of the form they are in. In this particular sentence, they act as a general or common noun which is why they will not be capitalized.
Thus, the correct sentence with the correct capitalization is option d.