HELPPP PLZZZ Which of these statements expresses a scientific theory?

A. All living organisms have a body that consists of one or more
cells.
B. A study of material found on a beach showed the presence of
cells.
C. A material that consists of one or more cells is a living organism.
D. Any cell that contains a nucleus is usually larger than any cell
without a nucleus.

2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.