Consider the following statements.
a) The wealth tax was first levied in 1957.
b) Estate duty was first imposed in 1953 and abolished in 2016.
c) The gift tax was imposed in April 1958 as a complement to estate duty, wealth tax, and expenditure tax.
Which of the statement/s is /are incorrect?
1. a and b
2. a only
3. b only
4. b and c