Electronic filing (e-filing): a. Reduces the chances that the IRS will make mistakes when inputting tax return information. b. Requires the services of a professional. c. Generally results in a slower refund. d. Can be done only by telephone.

a. Reduces the chances that the IRS will make mistakes when inputting tax return information.

Explanation:

Electronic filing simply has to do with the storage of business data on a computer system. It is way safer than filing on paper because these files can be stored and they have backup systems for them too. These systems gives a way of managing such files by organizing, updating, storing and retrieving the files whenever it is necessary.

Option a is the best answer for This question as it points out one of the many advantages of such a system.

answer; false pretense;

answer: marginal utility of the fourth brownie is 0.

explanation: marginal utility is the addtional utility gained from the consumption of one more unit of a good. it is given by,

so, marginal utility at the 4th unit will be given by

since, the values are not given here, you can simply find marginal utility at fourth unit by subtracting total utility at 3rd unit from total utility at 4th unit.