Which of the following expenses is deductible under s $8-1$ ITAA $97?$

Which of the following expenses is deductible under s $8-1$ ITAA $97?$

a$.$ Painting costs for dirty walls in a ten year old rental property prior to renting out to new tenants.

b$.$ Legal fees for preparing a lease for premises of a business.

c$.$ Superannuation contributions by a self$-$employed architect.

d$.$ Travel by a school teacher for school purposes and using their own car.