HTML5: Can't figure out this localStorage question

Question

Drag and drop from the options below to clear all values stored in the localStorage. Then store "a" using the key "b".

localStorage. _______();
localStorage.
setItem(______ , _______ );

Answer 1

The answer is simple:

"clear";
"b";
"a".

Answer 2

localStorage.clear ();
localStorage.
setItem("b" , "a" );