The average cost of a private room in a nursing home in 2019 was $102,200 a year, (28) _______ is 57 percent more than it cost in 2004, according to Genworth Financial.
The average cost of a private room in a nursing home in 2019 was $102,200 a year, (28) _______ is 57 percent more than it cost in 2004, according to Genworth Financial.
A. that
B. which
C. who
D. when