# Vaccines produced through genetic engineering are safe as

$\begin{array}{1 1}(A)\;\text{They contain antigen only from coat of pathoge}\\(B)\;\text{They are least active form of virus}\\(C)\;\text{They are attenuated form of pathogen}\\(D)\;\text{All the above}\end{array}$

They contain antigen only from coat of pathoge
Hence (A) is the correct answer.