【GMAT】Official Guide 2019 Verbal 248

老师请问to keep from和to avoid不是同一个意思吗？
Archaeologists in Ireland believe that a recently discovered chalice, which dates from the eighth century, was probably buried to keep from being stolen by invaders.
（OG19 V 248）
A to keep from 
B to keep it from
C to avoid
D in order that it would avoid
E in order to keep from