This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Forensic Medicine
Hera Lal's 10 year old child present in casualty with snakebite since six hours. On examination no systemic signs are found & lab investigation are normal except localized swelling over the leg of < 5 cm. Next step in management would be : 
Select and explain. 
A. Incision & suction of local swelling, B. I/V ply antivenum, C. S/cutaneous anti venum at local swelling, D. Observe the Patient for progression of symptoms wait for antivenum therapy
D: Observe the Patient for progression of symptoms wait for antivenum therapy
Answer: D: Observe the Patient for progression of symptoms wait for antivenum therapy 
Explanation: D i.e. Observe the patient for progression of symptoms and wait for anti venom therapy