What is the BEST explanation that accounts for the climate in tropical areas near the equator? A) When the air is cooled it can absorb more moisture, and it tends to rise. Thus air near the poles, heated by the direct rays of the sun, absorbs moisture and rises.
B) When the air is warmed by the sun it can absorb more moisture, and it tends to rise. Thus air near the poles, heated by the direct rays of the sun, absorbs moisture and sinks.
C) When the air is cooled it can not absorb as much moisture, and it tends to sink. Thus air near the equator, heated by the indirect rays of the sun, absorbs no moisture and sinks.
D) When the air is warmer by the sun it can absorb more moisture, and it tends to rise. Thus air near the equator, heated by the direct rays of the sun, absorbs moisture and rises. Higher in the atmosphere the air cools again, forming clouds that produce rainfall.

My reasoning is in this picture below

Proteins are the workhorses of the cell, controlling virtually every reaction within as well as providing structure and serving as signals to other cells. proteins are long chains of  amino acids  , and the exact sequence of the amino acids determines the final structure and function of the protein. instructions for that sequence are encoded in  genes  . to make a particular protein, a messenger ribonucleic acid (mrna) copy is made from the gene (in the process called  transcription  ), and the mrna is transported to the  ribosome  . protein synthesis, also called  translation  , begins when the two ribosomal subunits link onto the mrna. this step, called initiation, is followed by elongation, in which successive amino acids are added to the growing chain, brought in by transfer rnas (trnas). in this step, the ribosome reads the  nucleotides  of mrna three by three, in units called  codons  , and matches each to three nucleotides on the trna, called the anticodon. finally, during termination, the ribosome unbinds from the mrna, and the  amino acid  chain goes on to be processed and folded to make the final, functional protein