Question: Replace the batteries in child's electronic keyboard.
Option 0: Remove the battery compartment face plate, then use a small Phillips screwdriver to pry out the old batteries. Replace with spent batteries and then  replace the battery compartment face plate.
Option 1: Remove the battery compartment face plate, then use a small flathead screwdriver to pry out the old batteries. Replace with fresh batteries and then  replace the battery compartment face plate.
Answer: 1