Which of the following are not the assumptions related to the theory of consumer behaviour as per the cardinal utility approach?
1. Rational consumer
2. Unlimited money income
3. Utility cardinally measurable
4. Diminishing marginal utility of money
5. Constant marginal utility of commodities
6. Maximisation of satisfaction
7. Utility is additive

A. 1, 3, 5 and 7

B. 2, 4 and 5

C. 1, 3, 4 and 5

D. Both 6 and 7

Answer: Option C