Exam CRT-450 topic 1 question 87 discussion

A is correct. https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_classes_static.htm A class static variable can’t be accessed through an instance of that class. If class MyClass has a static variable myStaticVariable, and myClassInstance is an instance of MyClass, myClassInstance.myStaticVariable isn’t a legal expression.

the answer is D not A. You are instantiating a reference to the class InsuranceRates as 'rates', which has a static variable named smokerCharge which is accessible outside of that class. As such, it would be rates.smokerCharge

A - Correct A class static variable can’t be accessed through an instance of that class. If class MyClass has a static variable myStaticVariable, and myClassInstance is an instance of MyClass, myClassInstance.myStaticVariable isn’t a legal expression.

A is correct.

a.BECAUSE SMOKERcHARGE IS A STATIC VARIABLE

A is correct. verified it in the dev console. Option D won't even save, you will get the error "Static field cannot be referenced from a non static context: smokerCharge from the type InsuranceRates"

correct answer is D, b/c the InsuranceRates is instatiated by rates.

Just tried the code in dev console. A is the correct answer.