Correct Answer: accepting

Solution : The correct choice is the third option .

The underlined word convinced, implies a state of being entirely persuaded or fully certain about something. Accepting can be a synonym for "convinced" in the given contexts, which means they acknowledge or agree to something.

The meanings of the other words are as follows:

• Submerged : This term refers to being completely covered or hidden beneath a surface, especially underwater.
• Accepting : This word generally implies being willing to receive, believe, or recognise something.
• Trustless : This word describes a lack of trust or confidence, often suggesting suspicion or disbelief in something.

Therefore, the right answer is accepting .