Which Android version should I choose for developing a new app targeted for Android phones only? [closed]

Which Android version should I choose for developing a new app targeted
for Android phones only? [closed]

References

Reference NO 1

http://stackoverflow.com/questions/13645204/which-android-version-should-i-choose-for-developing-a-new-app-targeted-for-andr

Reference NO 2

http://stackoverflow.com/questions/4568267/android-min-sdk-version-vs-target-sdk-version

Reference NO 3

http://developer.android.com/training/basics/supporting-devices/platforms.html

Reference NO 4

http://mashable.com/2013/08/16/ios-android-development/

Reference NO 5

http://en.wikipedia.org/wiki/Android_(operating_system)

Reference NO 6

http://mobile.tutsplus.com/tutorials/android/common-android-virtual-device-configurations/

Reference NO 7

http://www.developer.com/ws/android/connecting-your-android-device-to-eclipse.html

Reference NO 8

http://blogs.adobe.com/indesigndocs/2012/10/creating-dps-folios-for-android-devices.html