Below are Royal Caribbean's cash flows from its most recent 10-K. Based on these, are you concerned about the company's operating cash flows, and if so, why?

	2021	2020	2019
Net cash (used in) provided by operating activities	(1,877,815)	(3,731,653)	3,716,366
Net cash used in investing activities	(2,144,739)	(2,178,566)	(3,091,406)
Net cash provided by (used in) financing activities	3,040,577	9,349,788	(670,371)

(1) None of the answers is correct

(2) Yes, OCF < 0 in 2020 and 2021 means that the firm was not generating cash from its operations, and had a cash flow problem

(3) Yes, the firm doesn't have enough cash

(4) No