Organic foods are natural and are believed to protect from diseases and to be of higher quality. What is the MOST LIKELY factor keeping organic foods from completely replacing conventional foods?
A)
greater cost
B)
health concerns
o)
environmental issues
D)
greater availability

I believe it's D

Explanation:

Because ppl eat mostly junk food now and because of that it has greater availability

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.