What is the right answer for the question:

Which of the following statements are true
A. Air temperatures over the ocean remain fairly constant throughout a 24 hour cycle.
B. Air temperatures over the land can vary significantly throughout the day.
C. Air temperatures over land reach their highest values in the mid-after noon
D. Air temperatures over land are always higher than air temperatures over the ocean

within 30 of the equator hope this

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).