The answer is A. Transport of water and minerals to the shoot system
The answer is the first 1. i think. :p
Then we would be producers instead of consumers
Genes B and C with 10% recombination frequency are closest to each other. Because recombination happens at random, the distance between genes that are farther from each other creates higher recombination frequency. A low recombination frequency of 10% means the genes are closest to each other. The short distance between the two genes allow fewer recombination to happen, thus the frequency is low.