it is the 2nd one because there is always a way to filter or change it back to its original format if it has been used
Answer:
C. Protein
Explanation:
Proteins contain C, H, O, and N.
Most notably, they contain an R group (aka a side chain), which is different for each for amino acid. The R group is symbolized by the letter R in the image.
Monitor herself for improvement or decline in movement and mood because salicylate therapy does not work for everyone. check for increased bilirubin and creatinine in blood tests, ..plse dbl.check..
