Which of the following statement regarding non-metals is true?

• A.  Non-metals are of two types only solids and gases.
• B.  Non-metals reacts with oxygen to form basic oxides generally
• C.  Non-metals are non-lustrous with dull apppearence. Graphite, an allotrope of carbon and iodine have shining lustrous surfaces.  
• D.  Non-metals replace hydrogen from acids.