The sentence below is divided into four parts labelled a, b, c, and d. One part contains a grammatical error. Identify the part with the error.

The remarkable rise in foreign investments have strengthened the fiscal position of emerging economies.

The correct option containing the grammatical error is: in foreign investments have strengthened.

Explanation:

Let us analyze the grammatical structure of the sentence:

"The remarkable rise in foreign investments have strengthened the fiscal position of emerging economies."

1. Identify the Subject:
The simple subject of the sentence is "The remarkable rise" (or simply "rise"), which is a singular noun phrase.

2. Identify the Prepositional Phrase:
The phrase "in foreign investments" is a prepositional phrase acting as a modifier to the subject "rise". The word "investments" is the object of the preposition "in", not the main subject of the sentence.

3. Subject-Verb Agreement Error:
According to the rule of subject-verb agreement, a singular subject requires a singular verb. Since the subject "rise" is singular, it must agree with the singular auxiliary verb "has" instead of the plural auxiliary verb "have".

Corrected Sentence:
"The remarkable rise in foreign investments has strengthened the fiscal position of emerging economies."

Therefore, the error lies in the second part: "in foreign investments have strengthened".