Which Sequence Represents the Correct Order of the Locations Where $\rightarrow$

Which sequence represents the correct order of the locations where rhizobia develop as a root nodule is formed, from earliest to latest?

A) Soil $\rightarrow$ root hair $\rightarrow$ cortex
B) Soil $\rightarrow$ cortex $\rightarrow$ root hair
C) Root hair $\rightarrow$ cortex $\rightarrow$ soil
D) Root hair $\rightarrow$ soil $\rightarrow$ cortex
E) Cortex $\rightarrow$ soil $\rightarrow$ root hair