(B) In his State of the Union address in 2003, President Bush supported the idea of changing from the use of internal combustion engines to fuel cells
based on hydrogen as a way of reducing air pollution and the emission of
greenhouse gases. Fuel cells are nonpolluting because they only emit water
vapor. President Bush proposed having the government subsidize research and
development of hydrogen fuel and fuel cell technology. The president did not
propose raising taxes on gasoline as a way of encouraging the use of fuel cells
and reducing greenhouse gases. Currently, hydrogen is more expensive than
gasoline.

Would an increase in the tax on gasoline encourage the development of
hydrogen-based fuel cell technology for automobiles?