Q51545 - CESGRANRIO - 2010 - EPE - Advogado,

According to Text 2, wave-power is, at present,

a) a cost-effective form of generating energy.
b) cheaper than wind power but more efficient.
c) a renewable form of energy only for beach houses.
d) at a developmental stage and commercially unviable.
e) the only possible alternative energy source for Portugal.