In the question given below, a sentence is given, divided into parts. One of the parts may contain an error. Identify the part that contains the error, and mark it as the answer. Ignore errors of punctuation. In case the sentence is correct as it is, mark option (e), that is, 'No error'. Note - The words in bold are grammatically and contextually correct. Mr. Cho is one of roughly two dozens South Korean honey bee farmers working in a six-mile-wide patchwork of rice paddies, forests, graveyards and firing ranges beside the 71-year-old DMZ.