Which of the Following Statements Apply to Hydrogen? Please Select

Which of the following statements apply to hydrogen? Please select all that apply.

A) Elemental hydrogen exists as a dimer with the lowest density of all the gases.
B) H₂ is generally unreactive unless in the presence of a catalyst.
C) Occurs naturally on Earth.
D) While the bond enthalpy of H₂ is high, the intermolecular forces between hydrogen molecules are weak.