Here is a forecast of sales by National Bromide for the first four months of 2019 (figures in $ thousands): <image 1> On the average 50% of credit sales are paid for in the current month, 30% are paid in the next month, and the remainder are paid in the month after that. What is the expected cash inflow from operations in months 3 and 4?
['Month 3: $31,000; Month 4: $30,000', 'Month 3: $81,000; Month 4: $96,000', 'Month 3: $91,000; Month 4: $86,000', 'Month 3: $119,000; Month 4: $100,000']