Given keys $20,30,33,35,38,40,50,60,100$

What order of key insertion would construct a Full Binary Tree

Group of answer choices

$40,30.60.20,35,50,100,33,38$

$40,100,20,50,30,35,33,38,60$

$40,20,60,30,50,100,35,33,38$

$50,40,30.60.20,35,100,33,38$