Which is the correct sequence in the development of man

• A

  Fertilization, zygote, cleavage, morula, blastula, gastrula

• B

  Zygote, morula, blastula, differentiation

• C

  Fertilization, cleavage, gastrula, morula, blas_tula

• D

  Cleavage, zygote, blastula, morula, gastrula