Identify and describe the following types of wills.
a. Holographic
b. Nuncupative
c. Soldiers' and sailors' will

Holographic

Referencing a document, especially a will, entirely written in the handwriting of the person whose signature it bears, often exempt from normally required formalities.

Nuncupative

Pertains to a will that is declared orally by the testator in the presence of witnesses, usually under circumstances where a written will cannot be produced.