Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to make a coloring book for young children [title] Decide on the book's size. [step] The most convenient dimensions for your book are 8.5 x 11 ", or standard size copy paper. Most commercially-made coloring books fit those proportions, so children are already accustomed to the size.

Ending1: [substeps] Select the size you want your book to be. For example, a 15-inch book for a 14-inch child might be made of 11 1/2-1.8 ". Ending2: A smaller book may be incredibly difficult for younger children to read and understand. [title] Purchase the supplies and materials to make the photo book. Ending3: However, there are many variations and ranges when it comes to a coloring book, including : [substeps] Child-sized. This will include different colors, shapes, and sizes, such as blue, green, orange, purple, and indigo. Ending4: Also, if you're stumped coming up with your own illustrations, you'll have the option of printing new designs off of the internet and adding them to your book later. [title] Determine how many pages your book will be.

Answer format: ending1/ending2/ending3/ending4