Final answer:
It's not possible to determine if the statement about MacMillan and Chouinard's career years with the Flames and Chouinard's 107 points in one season is true without additional context or access to NHL historical statistics.
Step-by-step explanation:
The statement: (True/False) Both MacMillan and Chouinard had career years for the Flames that year, but Chouinard had 107 points at the end of the season, is focused on the performance of two hockey players, presumably during a specific season. Without additional context, such as the particular year or season in question, ascertaining the veracity of the statement as either true or false is not possible. The information provided seems to pertain to a historical sports event, likely within the context of a National Hockey League (NHL) season for the Calgary Flames. If we had access to historical NHL statistics, we could verify the players' points to determine if Chouinard indeed scored 107 points and if both players had career years.