Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to choose a pen [title] Use a ballpoint pen. [step] Ballpoint pens are the most common variety you're likely to find. They make use of a rounded tip that allows oil-based ink to go on smooth and dry quickly.

Ending1: If you want to use a ballpoint pen every day, you can purchase a larger or thinner pen. Smaller pens require ink on a thicker, thicker working surface. Ending2: Ballpoint pens also have smaller curved tips that allow ink to set faster and feel easier to insert. [substeps] Make sure you select a ballpoint pen with long, narrow sides and wide beveled tips that don't make your ink jets stick out. Ending3: While you don't necessarily need a very thin pen to scribble, a thinner pen can make making small, discrete notes easier. [substeps] A ballpoint pen can be expensive, and will involve additional tips. Ending4: Ballpoint pens are basic, inexpensive and easy to purchase in large quantities. For most purposes, a ballpoint pen will work just fine.

Answer format: ending1/ending2/ending3/ending4