Directions: Each item in this section has a sentence with three underlined parts labelled as (a), (b) and (c). Read the sentence to find out whether there is any error in any underlined part and indicate your response against the corresponding letter i.e., (a) or (b) or (c). If you find no error, your response should be indicated as (d). 

This system allow(A)/ customers to customize their orders(B)/ and create personalized products.(C)/ No error (D)