The Value of the Dormant,thick-Walled Cell Structures Called Endospores to Species

The value of the dormant,thick-walled cell structures called endospores to species of at least two genera of bacteria is that they

A) enable the rotational whiplike action to propel the cell through its environment.
B) are the sites of DNA for specific cell functions or transfers among cells.
C) work to produce proteins from the genes of the bacterial DNA.
D) allow for either attachment to surfaces, or transfer DNA to other cells.
E) allow the organism to become dormant and survive harsh conditions for some period of time.