Problemas
Blood alcohol concentration can be determined by a breath test because A there is always a tiny bit of blood in saliva. about five percent of the alcohol leaves the body unchanged in the breath pers C it is more accurate than blood. c D . it metabolized alcohol differently
Roztwór
Cesar
experto · Tutor durante 3 años
4.4
(227 Votos)
Respuesta
The correct answer is B.
Explicación
## Step 1The problem is asking us to identify the correct reason why blood alcohol concentration can be determined by a breath test. The options provided are:A. There is always a tiny bit of blood in saliva.B. About five percent of the alcohol leaves the body unchanged in the breath.C. It is more accurate than blood.D. It metabolizes alcohol differently.## Step 2We need to evaluate each option based on its scientific accuracy.## Step 3Option A is incorrect because while there is some blood in saliva, it is not enough to measure alcohol concentration accurately.## Step 4Option B is correct. When a person consumes alcohol, a small percentage of it is excreted unchanged in the breath. This is the basis for breathalyzers.## Step 5Option C is incorrect. The accuracy of a breath test versus a blood test depends on the context and the specific test being used. It's not a general rule that breath tests are more accurate.## Step 6Option D is incorrect. The way the body metabolizes alcohol is not directly related to the ability to measure its concentration in breath.