The average rainfall over a given place during the three years period of $$2017 - 2019$$ was $$65$$ cm. During the three year period $$2016 -2018$$ the average rainfall was $$63$$ cm .The actual rainfall during $$2019$$ was $$60$$cm .what was the rainfall in $$2016$$?

choose the correct option

$$a)$$ $$55$$cm

$$b)$$ $$60$$ cm

$$c) 54$$ cm

$$d)$$ $$53$$ cm

Im confused