Read each sentence to find out whether there is any grammatical error or idiomatic error in it. The error if any, will be in one part of the sentence. The ‘alphabet’ of that part is the answer. If there is ‘No Error’ then answer is ‘e’ (Ignore errors of punctuation if any).
Q. Every household should (a) / have the device as it (b) / protects people from a (c) / common household disaster. (d) / No error. (e)