Which statement belongs in the region marked X? The current flows toward the base from the emitter.
The base is more negative than the emitter
0 The base is the center layer.
O The main charge carriers are negative electrons.

iron would move it is magnetic there is a mag field around the current in the wire

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.