chemistry

The professor wants that we do the following, Starting from alcohol that contains four or less carbons atoms and from benzene and toluene outline how the following can be synthesize:
a) 2,3-dimethyl-2-butanol
b)2-bromo-2methyl hexane
c) 1,2-diphenyl-2-propanol
d) 1-parabromophenyl-1phenal-1propanol