Objective: How to turn on wifi on an android phone

Which of the following solutions is more sound in terms of naive physics reasoning?

Options are:
[a]. Use a finger to swipe downward from the top of the display toward the bottom. Then find the 2 short horizontal lines and swipe those downward as well. Tap the icon that says "Wi-Fi" under it.
[b]. Use a finger to swipe downward from the top of the display toward the bottom. Then find the 2 short horizontal lines and swipe those downward as well. Tap the icon that says "Bluetooth" under it.
[a].