In the meeting the minister floated a couple of new ideas.

Answer: Option B

Gave : freely transfer the possession of (something) to (someone).
Presented : exhibit (a particular state or appearance) to others.
Advised : acting in a way that would be recommended; sensible; wise.
Offered : present or proffer (something) for (someone) to accept or reject as desired.
Floated : put forward (an idea) as a suggestion or test of reactions.

Synonym of Floated is Presented