Question

57 kiwi, strawberries and oranges help to build the immune system and are a good source of... a vitamin d b vitamin c c vitamin b d vitamin a

Explanation:

Kiwi, strawberries, and oranges are known to be rich in vitamin C. Vitamin C is essential for building and maintaining a healthy immune system. Vitamin D is mainly obtained from sunlight and certain foods like fatty fish. Vitamin B has multiple types (e.g., B1, B2, etc.) and is found in a variety of foods like whole grains and meat. Vitamin A is important for vision and is found in carrots and liver.

Answer:

B. vitamin C