What is the meaning of the following traffic sign?

- Correct answer: Two-way traffic ahead.
- You have right-of-way over vehicles approaching from the opposite direction.
- The number of lanes is increasing.
- You are permitted to use all lanes.
Why this is the answer
The correct answer in the official bank: Two-way traffic ahead.
A red triangle is a warning sign, and arrows pointing in opposite directions warn that traffic ahead flows both ways, often after a one-way section or divided road. Keep to the right and watch for oncoming vehicles. The sign gives no right-of-way and does not allow using every lane.