Levying environmental taxes and creating cap-and-trade quotas for emissions are both methods governments may use to reduce negative externalities. Which of the following best explains the economic rationale behind these policies?The policies ____. a. All of these answers b. place a monetary price on social costs so firms can guage their true costs accordingly c. decrease the marginal costs of pollution for the firms while increasing revenue for governments d. place a monetary price on social costs so firms can guage their true costs accordingWhich of the following is NOT a reason for market failure? a. Externalities b. Abundance of public goods c. Environmental concerns d. Abuse of monopoly powerly