Out of the given options, option 3, vitamin C, is the vitamin that is generally excreted in urine. Vitamin C, also known as ascorbic acid, is a water-soluble vitamin that is not easily stored in the body. Excess amounts of vitamin C that are not utilized by the body are excreted in the urine.

Option 1, vitamin A, is a fat-soluble vitamin. Fat-soluble vitamins, including vitamin A, are stored in the liver and fatty tissues in the body rather than being excreted in the urine.

Option 2, vitamin B, is a group of water-soluble vitamins that include B1, B2, B3, B5, B6, B7, B9, and B12. While some excess amounts of B vitamins may be excreted in the urine, it is not accurate to say that all vitamins in the B complex group are generally excreted in urine.

Option 4, vitamin D and K, is also incorrect. Vitamin D is a fat-soluble vitamin that is stored in the body, and the excess amounts are not excreted in urine. Vitamin K, on the other hand, is a fat-soluble vitamin