Just want to confirm answer, please comment down right answer

B. Plant X lower surface.

Explanation:

The diagram shows that plant X, lower surface took the quickest amount of time to lose its water.

In other words:

1 < 3 < 6 < 10.

layer 3 is younger than layer 6.

the last one: artificial selection/genetic engineering

plant breeding is modifying the genetic composition of the plant - but this isn't cloning (which is specifically introducing a gene into a genome). but you are artificially selecting for the phenotype that you want.

the second one is literally genetic engineering - the gene would have been cloned first and then inserted or genetically engineered into the new plant cell (the cotton).