Correct option is A
• Explanation: The error lies in part (a) because the word “Erection” is incorrectly used in the context of aircraft production.
• Erection is generally used for raising/setting up a structure (like a building, monument, pole, etc.). For aircraft, the correct term is “production”, “manufacturing”, “construction”, or “assembly”.
• Hence, the sentence becomes contextually incorrect due to wrong word choice.
• Correct sentence (one appropriate correction):
• Production/Manufacturing/Assembly of the first aircraft series formally started in December 1992, but was suspended in November 1995 due to political and economic uncertainty.
• Grammatical/Usage Rule Used (English):
• Wrong word usage (Diction Error): A sentence may be grammatically correct but still wrong if the chosen word does not fit the context.
• “Erection” is used with structures/buildings, not with aircraft series.
• For machines/vehicles, verbs and nouns like manufacture, produce, assemble, construction are used.
• व्याकरण/भाषा नियम (Hindi):
• यह word choice/diction की गलती है।
• “Erection” शब्द का प्रयोग सामान्यतः इमारत, स्मारक, खंभा आदि “खड़ा करने” के अर्थ में होता है।
• Aircraft के लिए सही शब्द production/manufacturing/assembly होते हैं।
• इसलिए भाग (a) में गलत शब्द के कारण वाक्य अर्थ की दृष्टि से गलत हो जाता है।
• Why other parts are correct:
• (b) “in December 1992, but was suspended in November” – tense and structure सही है।
• (c) “1995 due to political and economic uncertainty” – reason clause सही है।
So the correct answer is (a).