Which fat soluble vitamin helps in synthesis of prothrombin?

Q. Which of the following is a water-soluble vitamin?
(a) vitamin C
(b) vitamin A
(c) vitamin D
(d) vitamin K

Q. The vitamin that helps in maintaining healthy gums is
(a) vitamin K
(b) vitamin C
(c) vitamin A
(d) vitamin D

Q.

Match the following

Column I Column II

i. Macronutrient a. Vitamin B

ii. Water soluble vitamin b. Vitamin E

iii. Fat soluble vitamin c. Calcium

iv. Mineral d. Carbohydrates

Q. Assertion: Vitamin D can be stored in our body.

Reason: Vitamin D is fat soluble vitamin.

Q. Which of the following statements about vitamins are correct?
1. Vitamin C is essential to make connective tissue in body.
2. Vitamin D is needed for synthesis of eye pigment.
3. Vitamin $B_{12}$ helps in maturation of RBC.
4. Vitamin C is required to make use of calcium absorbed from the intestine.
Select the correct answer using the aide given below.