[单选题]
What does the phrase ‘t7,2tlt pzq*xz1juo6 3iiagh7 he gg9t z6l :rpvhhak9 7b,enetic code is universal’ mean?
A. Adenine always pairs with thymine, and guanine always pairs with cytosine
B. Almost all living organisms use the same genetic code
C. Different codons cannot code for the same amino acid
D. Proteomes are always larger than the genomes