Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to put a stamp on an envelope [title] Check the size of your envelope. [step] This should be marked on the packet of envelopes, or on the envelope itself. Size 14 envelopes measure 5 " x 11. 5 " and are considered the standard size.

Ending1: Expect standard size 0.073.2 inches. Make sure you look at the envelope closely before you move it in or out of your hand. Ending2: They will be rectangular in shape and will often be sold in packages at your local post office. [substeps] You can also mail a letter in an envelope that is smaller than a size 14, such as a size 10 envelope (4.125 " x 9.5 "), with a regular stamp. Ending3: Larger envelopes place a stamp on the envelope and can be stamped before a person or organization. Smaller envelopes may be signed with a paper stamp or with envelopes stamped with pen. Ending4: [title] Fold and press down firmly onto the envelope. [step] You have now created a stamp! [title] Measure your envelope for size 14.

Answer format: ending1/ending2/ending3/ending4