How will the browser process the following JavaScript command?

productCount $=0$;

Group of answer choices

If the variable productCount already exists it will set its value to $0.$ Otherwise it will create the variable and set it's value to $0.$

It will create a variable called productCount and set its value to $0.$

It will create a local scope variable called productCount with a value of $0.$

It will throw an error because the keyword let or const or var is missing.