Correct option is C
The normal rectal temperature for a newborn ranges from 36.6°C to 38°C, with an average around 37.7°C, which is slightly higher than oral or axillary readings. Rectal temperature is most reliable for neonates. Explanation of options:
· (a) ✘ Axillary temperatures are lower than rectal and average about 36.5–37°C.
· (b) ✘ Oral temperatures are not typically used in newborns.
· (c) ✔ Correct; rectal temperature provides the most accurate core body temperature in newborns.
· (d) ✘ While possible, 36.8°C is slightly low as the average rectal temperature.