Task: Determine the prevailing emotional tone of the tweet, categorizing it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that most accurately represent the tweeter's mental state.
Tweet: @GOtvNg CN seems like you only appreciate good reviews. No apologies to my concern years ago.
This tweet contains emotions: 
joy, optimism, sadness