The correct answer is: The number of tourists is expected to rise from seven to ten percent in the next ten years.
A. The number of tourists: This is the subject of the sentence.
B. is expected to rise: This is the verb phrase.
C. from seven to ten percent: This is the prepositional phrase that modifies the verb “rise.”
D. in the next ten years: This is the prepositional phrase that modifies the verb “rise.”
E. No error: This is the correct answer.
The sentence is grammatically correct and makes sense. It states that the number of tourists is expected to rise from seven to ten percent in the next ten years. This is a positive trend for the tourism industry, as it suggests that more people will be traveling in the future.