Which of these statements is true? A. The neutrons have a neutral charge and help stabilize an atom
B. The electrons have a negative charge and are in the nucleus
C. The protons have a negative charge and are in the nucleus
D. The electrons have a positive charge and orbit the nucleus in the electron cloud

Among these statements B is the correct answer.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa