Use the Following to Answer Questions

Multiple Choice

Use the following to answer questions :
-(Figure: Income and Substitution Effects) Use Figure Income and Substitution Effects.Carlos is consuming his optimal consumption bundle at point A when the price of gasoline falls.The movement from K₂ to K₃ reflects the _____ the decrease in the price of gasoline.

A) total change in quantity demanded due to
B) income effect of
C) substitution effect of
D) income and substitution effects of