According to the text, it can be said that I alternativ...

According to the text, it can be said that

I alternative fuels will be a substitute for petroleum.

 II Brazil was already doing what Nixon was pledging.

III Brazil succeeded in reducing its petroleum based fuel consumption by cars by around 50%.

IV Brazilian tremendous effort to produce ethanol is as salutary as it is announced.

V alcohol is neither suitable to replace diesel fuel nor heating oil.

The total number of true items is