Final answer:
A temperature reading that indicates a fever is a reading above 100.4 F (38.0 C); therefore, options (a) Temp 38.2 C (100.8 F) and (c) Temp 39.4 C (102.9 F) represent a fever.
Step-by-step explanation:
A temperature reading that indicates a fever is option (a) Temp 38.2 C (100.8 F) and (c) Temp 39.4 C (102.9 F). The average normal body temperature is usually accepted as 37.0 C (98.6 F), with slight variations depending on time of day and individual factors. However, a reading above 100.4 F (38.0 C) typically signifies a fever, which may be due to various causes such as an infection or an upward adjustment of the body's temperature set-point. In the context of the options provided, both Temp 38.2 C (100.8 F) and Temp 39.4 C (102.9 F) are above this threshold, indicating a fever, while the other temperatures are within the normal range or below.