Question

a cell membrane is...
not semipermeable.
all of these answers are correct.
a protective barrier that wraps around cells and helps control what moves in and out.
the powerhouse of a cell.

Explanation:

The cell membrane is a protective barrier. It is semi - permeable (so the option “not semipermeable” is wrong). The mitochondria is called the powerhouse of the cell (so the option “the powerhouse of a cell” is wrong). Since two of the options are wrong, “all of these answers are correct” is also wrong.

Answer:

a protective barrier that wraps around cells and helps control what moves in and out.