Nitrogen has 7 total electrons and can form a maximum of bonds with other elements.

Nitrogen forms maximum three bonds with other elements. 
Nitrogen has atomic umber 7 and it is from the family VA in the periodic table. Nitrogen has five valence electrons, to complete its octet nitrogen needs three electrons, for this it makes three triple bond with other nitrogen atom. The triple bonds are covalent bonds.

a low [OH– ] and a high pOH

Explanation:

A solution with high pH will have low concentration and a solution with low pH will have high concentration.

A solution with high pH is more basic  

A solution with low pH is more acidic  

pH and pOH is related by pH + pOH = 14

A solution with high pOH is more acidic  

A solution with low pOH is more basic  

Thus we see pH and pOH are inverse to each other.

So second option a low [OH– ] and a high pOH  is the Answer

That is High []  will be low and this will be high pOH………..Acidic solution.