I believe the answer is:
C. within 30 minutes
30 minute is the average time needed by human body to start lowering the amount of blood alcohol inside it. Consuming another alcohol below 30 minutes time frame would only accumulate the Blood Alcohol level and make you much more likely to experience the negative effect of alcohol.
One of the most common effects of an ear infection in infants is having a fever/temperature
The best technology would be Digital x-ray.
Diagnosis and treatment of bone fracture, doctors can diagnose fractures with x-rays. They may also use CT (computed topography) scans and MRI (magnetic resonance imaging). Broken bones heal by themselves and the aim of medical treatment is to make sure the piece of bone are lined up correctly.