Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Haven't yet read why Dutch drivers are so happy, but here's my theory: because they could quit driving and still have great transpo options.
This tweet contains emotions: 
joy, optimism