Question

Which of the following statements about the nucleus is true?

Answer 1

The answer is B.The nucleus is surrounded by cell membrane that lets materials in and out.

Answer 2

The answer to this question is B. The nucleus is surrounded by cell membrane that lets materials in and out. 
This cell membrane is called nuclear membrane. Nuclear membrane has small holes that called the nuclear holes that allow materials to come in or out of the nucleus, depending on whether the materials is needed by the nucleus to do its current process.