I'm pretty sure the answer is B
The correct answer is A) DNA
The advantage of being double stranded in DNA is that double strands makes it much more stable. <span>Having two alleles for one gene gives variation. </span><span>Double Stranded DNA can tolerate many risk factors from the homeostasis' processes that is keeping the cells alive. </span><span>Double-stranded DNA ensures that the actual genetic information is less likely to react, and it can be opened in the case of replication and transcription. </span> <span>Another advantage of double strand DNA is the ability of the cell to create a new portion of DNA in case of DNA damage, by using the non-damaged strand.</span>
1.With human to human contact.
2.By putting germs in your mouth.
3.Mouth to Mouth contacts.
4.By having someone cough on you.