How does the total resistance change when the conductors are connected in parallel 1) does not change

How does the total resistance change when the conductors are connected in parallel 1) does not change 2) increases 3) decreases

For parallel connection of conductors, the total resistance R is determined by the formula: R = R1 * R2 / (R1 + R2), where R1 and R2 are the resistances of the parallel-connected conductors.
Let’s say that R1 = R2 = 1 ohm. Then R = 1 Ohm * 1 Ohm / (1 Ohm + 1 Ohm) = 0.5 Ohm.
Let’s say that R1 = R2 = 2 ohms. Then R = 2 ohms * 2 ohms / (2 ohms + 2 ohms) = 1 ohms.
Let’s say that R1 = R2 = 3 ohms. Then R = 3 ohms * 3 ohms / (3 ohms + 3 ohms) = 1.5 ohms.
Let’s say that R1 = R2 = 4 ohms. Then R = 4 ohms * 4 ohms / (4 ohms + 4 ohms) = 2 ohms.
We see that with increasing resistances, the total resistance R also increases.