Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to whistle using an acorn cap [title] Find an acorn cap. [step] This is the brown part on top of the acorn. Make sure it is not cracked or deformed.

Ending1: Otherwise, it will not hold the whistle correctly. Read the instructions on the acorn cap itself. Ending2: Also the larger the acorn cap the lower the pitch. [title] Grab the acorn cap in both of your hands between your thumb and index finger with the inside of the cap facing you. Ending3: Fit your finger between the part of the acorn cap and the nose of the acorn cap. Your finger must have a smooth top of course, as blueberries do not do well with rough edges. Ending4: The acorn cap will give you a better position to whistle. [title] Place the stem of the garden pipe in the middle of the center of the acorn cap.

Answer format: ending1/ending2/ending3/ending4