Which of the Following Statements Is False

Which of the following statements is false?

A) Nonstandard amino acids are found in prokaryotes and eukaryotes.
B) There are hundreds of amino acids found in nature.
C) There are 22 amino acids that are genetically encoded by codons.
D) In some species, one stop codon has been swapped out for one of the nonstandard amino acids.
E) Four amino acids are considered nonstandard.