The certificate variable is not attainable outside the if loop

Question

What's the problem with this code? 
```javascript
const student  = "INSA"; 
if (student === "INSA") 
{ 
        let certificate = true; 
        console.log('In this block, student='+student+'; certificate='+certificate); 
} 
console.log('In this block: student ='+student+'certificate='+certificate);

Accepted Answer

the certificate variable is not attainable outside the if loop

Answer

the variable "student" is not reachable outside the IF block

Answer

the variable "student" is constant

Answer

the variable "student" is not attainable in the IF block

Question from the Javascript - Fundamentals test

The certificate variable is not attainable outside the if loop