Pick out the wrong statement.

• For the manufacture of styrene, the major raw materials are benzene and ethylene.
• One inportant copolymer of styrene is SBR, which is widely used in the manufacture of automobile tyres.
• Manufacture of phenol by chloroben-zene-eaustic process involves. The chlorination of benzene, causticisation and hydrolysis.
• Phenol manufacture by chlorobenzene-caustic process is competitive even when low cost chlorine is not available.