Pick the correct continuation for the sequence.
Two of the options are legal symbols in the sequence, two are not.
I think it's
You're counting binary top down, with finger = 1 and space = 0
So the sequence is:
1011 = 11 $->$ 1100 = 12 $->$ 1101 = 13
Next would be: 1110 = 14
Which equates to 'finger-finger-finger-space' which is picture C