This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to hide pictures on galaxy s4
Download a file manager app.
The most popular free file manager is " es file explorer ". This app will allow you to manipulate the files stored on your device, without needing to connect the s4 to a computer.

Pick your answer from:
1). For extended users, download finder app. The app is free; without an app icon, the picture will remain hidden..
2). It will download the file explorer package, such as cd/dvd, and create the image (s) you want to hide, like the thumbnail, add-on files, and so on. They are available on google play and your phone's app store, and will load almost instantly..
3). You can find this app on google play's menu bar at the top of your screen. Connect your galaxy s4 to your computer using a usb port..
4). Navigate to the picture you want to hide. Pictures that you've taken are typically in the " dcim " folder, while pictures that you've downloaded can usually be found in the " downloads " or " pictures " folders..
The answer is:
4).