The correct answer is ‘Part C’, i.e. the error lies in this part. Key Points Let us see some rules which can be implemented here. The plural verb 'are' does not appear to agree with the singular subject 'distance'. Therefore, an error is present in the 'Part C' of the sentence. Hence, 'are' present in 'Part C' of the sentence should be replaced by 'is'. Correct Sentence: The total distance travelled by us is fifty miles. ​​Additional Information Let us look at the 'Present Tense'. 'Present tense' is used to talk about something that is going on now(currently) or that is true now and at any time. Types of Present tense:​ Simple present tense Present continuous tense Present perfect tense Present perfect continuous tense​ [ alt="hin1" src="https://storage.googleapis.com/tb-img/production/21/01/hin1.png" style="width: 200px; height: 92px;"> आइए देखते हैं कुछ नियम जो यहां लागू किए जा सकते हैं। बहुवचन क्रिया are, 'singular' विषय 'distance' से सहमत नहीं दिखाई देती है। इसलिए, एक त्रुटि वाक्य के 'Part C' में मौजूद है। इसलिए, वाक्य के 'Part C' में 'is' मौजूद हैं 'are' से बदल दिया जाना चाहिए 'Present tense' का उपयोग उस चीज़ के बारे में बात करने के लिए किया जाता है जो अभी (वर्तमान में) चल रही है या जो अभी और किसी भी समय सच है। वर्तमान काल के प्रकार: Simple present tense Present continuous tense Present perfect tense Present perfect continuous tense