To find the social marginal benefit of public goods, one needs to:. a. sum the consumers' demand curves vertically.
b. sum the consumers' demand curves horizontally.
c. sum the marginal private benefit and the marginal external benefit for each unit.
d. sum the marginal private cost and the marginal external cost for each unit.
e. subtract the individual portion of the tax burden necessary for the government to provide the good from the demand curve of each consumer who desires the good.

He following data come from the financial statements of riley company for the year ended march​ 31, 2017 ​(in millions). ​(click the icon to view the​ information.) requirements 1. prepare a cash flow statement for the year ended march​ 31, 2017. not all items given appear on the cash flow statement. 2. what activities provided the largest source of​ cash? is this a sign of financial strength or​ weakness? requirement 1. prepare a cash flow statement for the year ended march​ 31, 2017. not all items given appear on the cash flow statement. ​(use parentheses or a minus sign to show cash​ payments, cash​ outflows, and/or a net decrease in cash. if a box is not used in the statement of cash flow leave the box​ empty; do not select a label or enter a​ zero.) riley company statement of cash flows year ended march 31, 2017 millions cash flows from operating activities: net cash provided by (used for) operating activities