Another student suggested that the result for egg 4 was anomalous. do you agree with this student? give a reason for your answer.

this is a good question! i'll do some research and come back when i have the answer!

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).