Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to encrypt your facebook messages [title] Open the app store on your android or ios device. [step] In order to use encrypted messaging with facebook, you'll need the facebook messenger mobile app installed and updated on your android or ios device. You can get the app from the device's app store.

Ending1: If not, or if you haven't yet set up a facebook messenger account, download the app from. [title] Log in using your facebook login credentials. Ending2: You can also download facebook messenger from the app store. [substeps] Windows messenger can be downloaded from the official app store that came with your device, or find it on your play store, and tap on it. Ending3: [title] Tap the " gmail " button at the upper-right corner of the screen. [step] Doing so will open the gmail app's main menu. Ending4: [substeps] On ios devices, select the app store. On android devices, select the google play store.

Answer format: ending1/ending2/ending3/ending4