There will be 4 injectors in the EFI fuel system.
Answer: Option D
<u>Explanation:</u>
For each cylinder, one injector is needed so a four-cylinder engine will have 4 injectors. Usually, it will be present near the intake manifold. So the port of the Electronic Fuel Injection – EFI needs four injectors in the calculation of one per one cylinder. 
Generally, in engines there will be one injector per cylinder. In that calculation when you have a four-cylinder engine should have 4 injectors. If four injectors are not able to keep up your engine to meet the machine performance, you can add additionally.
 
        
             
        
        
        
The total number of people that will be selected is 14.
Explanation:
In the case of stratified random sampling, we first need to split the population into several strata and then select a sample from each. For a given question, the solution type is 
Sample size of strata = (Scale of whole sample by population size) multiply strata size 
= (20 by 300) multiply 210 
After we have resolved, 14 or 14 persons will be chosen.
One value is that here, as we split all the data into strata and then pick samples from them so that they can be used as a protection against unnecessary samples and to have more precise sample measurements. Here, because we needed samples from the population that provided yes and no opinion so that it is easier to use stratified sampling method then if we use simple random sampling then we can use those samples that did not offer an opinion. But since we're not using this form, we can stop it.
 
        
             
        
        
        
<h2>The correct answer is 
<em>flourscent</em></h2>
 
        
             
        
        
        
You don't have to count the zeroes (it's easier)