To solve this problem, we need to calculate the Expiratory Capacity (EC) of the athlete.$\newline$Expiratory Capacity is defined as the sum of Tidal Volume (TV) and Expiratory Reserve Volume (ERV).$\newline$Given values:$\newline \bullet$Tidal Volume (TV) = 500 mL$\newline \bullet$Expiratory Reserve Volume (ERV) = 1000 mL$\newline$The formula for Expiratory Capacity (EC) is:$\newline EC = TV + ERV \newline$Substituting the given values:$\newline EC = 500 \,$mL$+ 1000 \,$mL$\newline EC = 1500 \,$mL$\newline$Therefore, the Expiratory Capacity of the athlete is 1500 mL.$\newline$This corresponds to Option 1.