Directions: Read the following sentence to determine if there is any grammatical or contextual error within it. If there is an error, it will be in one part of the sentence. Identify the part in which the error exists and mark it as your answer. Please consider the part in bold as grammatically correct. If there is no error, select E, i.e., 'No error' as your answer. Please ignore punctuation errors.

Investments in clean energy and electric mobility (A) / in India offer a unique opportunity to combat (B) / air pollution and improve health, / but its impact may be limited without changes (C) / in other systems like food and mobility. (D) No error (E)