Two resistances R1 = 18.7 Ω. and R2 = 3.624 Ω in series. The total resistance to the appropriate number of significant figures is

Two resistances R1 = 18.7 Ω. and R2 = 3.624 Ω in series. The total r

1.	Two resistances R1 = 18.7 Ω. and R2 = 3.624 Ω in series. The total resistance to the appropriate number of significant figures is
A.	22.324 Ω
B.	22.32 Ω
C.	22.3 Ω
D.	22 Ω
Answer» D. 22 Ω