Ahandicraft
a. is a creative expression of an idea in some form.
b. is a type of cloth made by interlacing threads on a loom.
c. is made using hand skills and generally serves a utilitarian rather than fine art function.
d. emphasizes the physical effort and skill in the creative process.

The question is asking us to choose from the options what handicraft is. Handicraft is the general activity of creating things with your hands, on your own - for example of sewing your table cloth. It is not typically very difficult psysically, but some skill is required. Therefore, the best answer is c. is made using hand skills and generally serves a utilitarian rather than fine art function.

Generally spontaneous human combustion is something that still bewilders some, human combustion happens very rarely and doesn't affect the surrounding areas, so unless you want to set your self on fire, human combustion will remain spontaneous and very rare.

Istrongly agree with the answer above!