Directions: Fill in the blanks with the appropriate word.

Take possession of the important records, lest they are ______________ with.

After "lest" (meaning "to avoid the risk of"), we use a structure indicating something bad happening. "Tampered with" means interfered with or altered without authorization, which fits records that could be fraudulently changed. The other options are either less precise or don't convey the specific meaning of unauthorized alteration.