Hello there, the correct answer is:
3. Ease of admittance.
Hi! The most reasonable answer is a,d,b,c.
I agree with it because it is affordable and looks after the population!
1 - complete protein
2-Vegetables
3-??
4- ??
5- Vitamin A
6 - Sucrose
7- ??
8-??
9- Citrus Fruits