Question

English help, 1 question?

The British Prime Minister, who is visiting the U.S. this week is extremely charismatic and intelligent.

Are there any errors? 

A. The
B. U.S.
C. week is
D. charismatic and intelligent 
E. No error

Answer 1

C because how does he know he's charismatic and intelligent if he's supposed to come visit this week

Answer 2

The correct answer is C. week is.
The reason why this is incorrect is because there has to be a comma between the words week and is. The clause 'who is visiting the US this week' is an appositive clause, which means that it has to be set off from the rest of the sentence using commas. Hope this helps!