Employment

Question: The distinction in status between employed and self-employed has a number of important consequences.
Which of the following statements is/are true?
1) Certain state benefits (e.g. statutory maternity pay) are only available to employees.
2) An employee receives their pay gross ( i.e. without deduction of income tax)
3) An employee receives statutory protection against unfair dismissal
a) 1) and 2) only
b) 1) and 3) only
c) 1 only)
d) 1),2) and 3)
For the above question, It seemed to me that only 3) is correct. I think 1) is wrong because unemployed are more deserving of certain state benefits rather than the employed. So what is the misconception that I am having in 1).