Based on what is stated in the text, it can be deduced that

I in terms of oil production an increase in Brazilian production can bring about changes in Saudi Arabia's current position.

II even if there's an augmentation of 1-1.5 million bpd in Brazil's oil production by 2020, it shouldn't suffice the international demand.

III OPEC is expected to produce about 50% of the total global demand for oil by 2020.

IV OPEC is responsible for lowering the oil production of other regions.

V 55-60 million bpd will be the total oil production by 2020.

The total number of true items is