Study each of the following case. Answer the questions that follow with Yes or No.

Popov despised lawyers and refused to have one prepare his will. Instead he went online, got information about estate planning, and wrote a will in his own handwriting in which he left his entire estate to his brother and $1 to each of his three children. The will was not witnessed by anyone. After his death, his children challenged its legality and validity.
a. Are witnesses always necessary for a handwritten will to be valid?
b. Is this an example of a holographic will?
c. Will the validity of the will be rejected by the court because it was not prepared by an attorney?