In somatic cell nuclear transfer, which of the following occurs?

In somatic cell nuclear transfer, which of the
  following occurs?
 
  a. the adult cell injected into the egg cell
  immediately starts dividing.
  b. an electric current causes the injected adult
  cell to empty its nucleus into the egg
  cytoplasm.
  c. DNA repair enzymes repair all of the adult
  cells mutations before the cloned cell
  begins cell division.
  d. only the nucleus of the adult cell is injected
  into the egg cell.
  e. none of these things happen in somatic cell
  nuclear transfer

Question 2

What is the basic problem with artificial
  cloning of adult cells?
 
  a. adult cells are already differentiated
  b. adult cells do not divide
  c. adult cells have too many mutations
  d. adult cells only have a subset of the original
  embryonic DNA
  e. more than one of these is a basic problem
  with the artificial cloning of adult cells