Read the text and determine if the sentence is true (see options at the end):

In conversations with Ms. Robbins, it is understood that Armstrong Environmental Inc. has been retained by past or present owners or some combination of these parties.

Sentence: In conversations with Ms. Robbins, it is not understood that Armstrong Environmental Inc.
OPT: (I) Yes; (II) It's impossible to say; (III) No;
(III)