It is because digestion happens in the smaller intestine
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.
Are you putting in contacts?
The correct answer should be low to moderate intensity and long duration. For weight loss, it's better to do something at a lower intensity but for a long time than to do something quickly but pushing yourself. That's why cardio exercises and running is great for losing weight. It helps you work at your own pace and you can do them for a long time.