Answer: Last option
They all have the same current.
Explanation:
A connection of three elements in series is represented as follows:
--------[4Ω]-------[8Ω]--------[12Ω]----------
→ I
Note that the three elements share the same current line I .
By definition when the resistors or other electrical components are connected in series then the same current passes through them. Therefore in this case the magnitude of the resistance does not influence the magnitude of the current.
The answer is the last option
