Hello, I would like the answer to this question please.

Suppose you are interested in modeling the amount of money a household spends for a house. We would expect income to be a determining factor. In addition, the income tax rate for a household might be important since there are tax advantages to home ownership, If you were to run a regression of home purchase price on income and marginal tax rate, your results might be subject to.. a. Multicollinearity. b. Heteroscedasticity c. Specification bias O d. Autocorrelation