Investment expenses to purchase federally exempt bonds or notes are not deductible on the federal return because the interest earned is not taxed. Which of the following statements is correct concerning the Oregon return for interest from other states? Question 3Select one: a. Oregon conforms to the federal tax code and therefore investment expenses are not deductible b. Because the interest earned from other states is added back to Oregon income, investment expenses can be used to reduce the amount of the addition c. The interest earned from other states is added back to Oregon income, but investment expenses can not be deducted against this income in Oregon d. None of the above are correct