Sarah and Lydia are two sisters that have been learning how to farm since they were kids. After graduating college, they both started their own farms and have been working on their own for several years now. At a family get together, Sarah mentions that her farm is experiencing soil salination. Lydia finishes swallowing her bite of cake and remarks that her farm has never experienced that before. Who has less free salts in the soil of their farm?
A:
Lydia