Answer:It has an alternating chemical phosphate and sugar backbone, making the 'sides' of the ladder. (Deoxyribose is the name of the sugar found in the backbone of DNA.) In between the two sides of this sugar-phosphate backbone are four nitrogenous bases: adenine (A), thymine (T), cytosine (C), and guanine (G).
Explanation:
It would be C, because A already happened and B isn't true and D also isn't really true
Barium chloride I looked up the awnser
The animalia. plantae, and protista are all kingdoms. This will make the correct answer B.