Read the sentence to find out whether there is any grammatical error/mistake in it. Errors, if any, will be in TWO PHRASES of the sentence. The combination of those parts is the answer of that question. If no part in the sentence has an error then, mark 'No error' as your answer (ignore punctuation error if any).

Journalist Lyra McKee's gruesome murder (A)/ in Londonderry has (B)/ brought into focus the fragile (C)/ Irish peace process (D).