मैं दौड़ना जानती हूँ।
Step 1: Identify the meaning.
Sentence: "मैं दौड़ना जानती हूँ।" means "I know how to run."
Step 2: Analyzing options.
(A) Correct — grammatically accurate and conveys the exact meaning.
(B) Wrong — incorrect word order.
(C) Wrong — incomplete structure.
(D) Wrong — unusual structure, not standard English.
Step 3: Conclusion.
Correct translation is I know how to run.
मैं एक पत्र लिखने जा रहा हूँ।