Complete the mechanism for the rcaction of butanonc with NaBH, followed by the addition of aqueous acid. 1. NABH, final product 2. H,O* Step 1: draw curved arrows. Step 2: Draw the charged organic intermediate product. Include nonbonding electrons and charges. Omit the counterion. Select Draw Rings More Erase B Na Select Draw Rings More Erase :0: 1,0 Na