When the price of Yoga tea decreases, both the income and substitution effects play a role in the response. If Yoga tea is a normal good,
a. the income effect leads to more consumption of Yoga tea, while the substitution effect operates in the opposite direction
b. the income effects leads to less consumption of Yoga tea, while the substitution effect operates in the opposite direction
c. both the income and substitution effects lead to additional consumption of Yoga tea
d. the income effect is larger than the substitution effect