Each of the given question consists of a sentence which is divided into four parts. Only one part in each sentence is not acceptable in standard written English. Identify the part which contains an error.

Correct option is D

· Explanation:
· Part (d): "said that cloning is possible." The error lies in the verb tense. The phrase "said that" indicates a past action, so it should be followed by the past tense or past perfect tense, not the present tense.
· Corrected Sentence: The current edition of the encyclopaedia, which I saw yesterday, said that cloning was possible.
· Grammatical Error: The error is the use of the present tense "is" instead of the past tense "was". The phrase "I saw yesterday" sets the sentence in the past, so the verb "said" should match that by using past tense.
· Hindi Explanation: जब हम किसी घटना का वर्णन करते हैं जो पहले हो चुकी है, तो हमें "said" के बाद "was" का उपयोग करना चाहिए, क्योंकि क्रिया का समय पहले का है।
सही उत्तर: विकल्प (d) में त्रुटि है।