Waterway Industries had net income for 2021 of $2930000. Additional information is as follows:

Depreciation of plant assets	$1198000
Amortization of intangibles	250000
Increase in accounts receivable	430000
Increase in accounts payable	542000

Waterway's net cash provided by operating activities for 2021 was

a. $4490000.

b. $4378000.

c. $2610000.

d. $4266000.