Choose from options: Determine if the sentence is true based on the text below:
The cannabinoids will treat bipolar disorder in rats.

Zhang and his co-workers performed behavioral tests on two purified cannabinoids. The test results indicated that these two cannabinoids have anti-anxiety and antidepression-like effects in rats that may depend on the ability of cannabinoids to promote the production of new neurons in the hippocampus. Marijuana contains a complex mixture of chemicals including cannabinoids and may have somewhat different behavioral effects than the purified cannabinoids tested so far.
Possible answers:
(1). Yes
(2). It's impossible to say
(3). No
(2).