The correct option is B 34 L
Ryan’s water bottle capacity is 1L.
He drank 1/4 L of water, which means quarter of a litre.
One litre is equivalent to 4 Quarter litre, so if one quarter is removed from one litre we are left with 3 quarter litre.
3 Quarter litre = 3 × 1/4 L = 3/4 L