Correct Answer: 3️⃣ — 100,000 units Forex ki “standard lot” size = 100k base currency units. 🏦 Iska matlab: agar aap EUR/USD trade kar rahe hain, to 1 standard lot = €100,000 buy ya sell. Har 1-pip move ≈ $10 ke barabar hota hai (major USD pairs mein), isliye leverage aur risk management par khasa dhyan zaroori hai. 🔄💡 (Micro = 1k, Mini = 10k — aur Institutional/Bulk trades is se bhi bade hote hain.)