Refer to figures.
Note: This question is not 100% clear in its wording, but it is strongly implied that the trim tab's movement is being measured in relation to the position of the elevator itself, as this is the piece of the aeroplane it is attached to. I.e. if the trim tab is exactly in-line with the elevator direction, and the elevator is deflected upwards, the trim tab will move with the elevator and still be exactly in line with the new elevator position.

Trim tabs are used to set the neutral position of control surfaces whilst in flight so the pilot can fly along without having to always input force into the controls. These can be "ground adjustable" (bendable metal) tabs in some cases, though these cannot be adjusted in flight and are therefore NOT used for elevators (only rudder or ailerons on some aircraft). 

Normal trim tabs are adjusted by cables in flight to set the resting point of the control surfaces such as the elevators. Trim tabs in general are a bit counter-intuitive. If, for instance, you wanted to trim elevators to pitch up (the elevators deflected upwards to pitch the aircraft nose up), then the trim tabs are adjusted downwards. You have to think that the trim tab acts on the elevator, not on the aircraft. The trim tab deflecting downwards causes the elevator to be pushed upwards by the aerodynamic forces, and as the elevator is so much larger a control surface, it then has a constant nose-up effect on the aircraft.

However, normal elevator trim tabs are set by the pilot to maintain a certain deflection (up or down) from the elevator. Say the trim is set to 2° upwards from the elevator and the trim wheel is not touched any further. No matter the movement of that elevator through the normal flight controls, the trim tab will always be 2° upwards deflection from that elevator. Therefore, if the elevator is at 10° upwards deflection, that trim tab will effectively be deflected 12° upwards in relation to the horizontal stabiliser.

Therefore, the correct answer is that the trim tab will “remain in the same position irrespective of the deflection of the control surface.”.

Only tabs like balance and anti-balance tabs are made to move independently based on the elevator deflection (to either assist elevator deflection or reduce it).