Need some help with these questions, thanks!

Which of the following changes produces an upward shift in the consumption function? 0 A decrease in consumer wealth C) An increase in disposable income 0 An increase in consumer wealth Q A decrease in autonomous consumption Question 4 Which of the following changes produces a leftward shift in the investment demand curve? C) High plant capacity utilization O A wave of optimism about future protability C) New tax breaks for businesses 0 An increase in business taxes