Answer:
"c) if room temperature is maintained below 20°C (70°F)".
Step-by-step explanation:
Cream-filled pastries, such as custard, pies, cream puffs, and chocolate éclairs, do not need to be refrigerated if the room temperature is below 20°C (70°F). This is because the cream filling contains ingredients, like eggs and dairy, that can spoil if left at room temperature for too long. However, if the room temperature exceeds 20°C (70°F), it is recommended to refrigerate these pastries to prevent bacterial growth and ensure food safety.
It is important to note that the other options, a) when part of a dessert display and b) if consumed within 3 hours of preparation, do not guarantee the safety of cream-filled pastries. Displaying cream-filled pastries for an extended period or consuming them after 3 hours can increase the risk of foodborne illness. Therefore, the most accurate option is c) if room temperature is maintained below 20°C (70°F).