As at December 2021 Riverdale Bank had a pool of assets with common credit risk characteristics. Its past 5-year performance is (all amounts are in $millions):

YEAR	AMORTIZED COST	AVERAGE BALANCE	ANNUAL NET CHARGE OFF
2017	80,100	67,849	1,230
2018	83,159	71,089	1,859
2019	89,068	75,894	1,583
2020	94,956	80,784	1,724
2021	98,784	85,784	2,186

Riverdale estimates that payments on the pool of assets over the next 5 years (i.e., 2022 to 2026) will be $21,089, $25,961, $20,473, $17,567, and $13,694, respectively.

What was Riverdale's charge off rate in 2019?

A. 2.62%

B. 2.13%

C. 2.09%

D. 2.55%

E. 2.24%