The correct answer is **Shobha was learning German.** (Option 1). **Comprehensive Derivation:** The correct answer is "Shobha was learning German." Explanation & Key Takeaways: • When converting a sentence from passive to active voice, the object in the passive sentence becomes the subject in the active sentence, and the verb adjusts to agree with the new subject. • In the passive voice sentence, "German" is the object and "Shobha" is the agent (the doer of the action). • The verb "was being learnt" is in the past continuous tense. • When we convert this into the active voice: • "Shobha" now becomes the subject. • The verb "was being learnt" changes to "was learning" to maintain the past continuous tense. • "German" becomes the object. Therefore, the correct answer is "Option 1". **Option Elimination:** • **Option 1 (Shobha was learning German.)**: Correct Answer; accurate according to canonical reference. • **Option 2 (Shobha have learning German.)**: Incorrect distractor. • **Option 3 (Shobha was learn German.)**: Incorrect distractor. • **Option 4 (Shobha has learning German.)**: Incorrect distractor. **Exam Trap:** Be careful of misleading distractors and subtle terminology differences. Verify core properties before selecting your answer. **Memory Booster:** Core mnemonic rule: Shobha was learning German. corresponds to Option (1).