There is one mistake in each sentence. Find and correct it

Exercise 3: There is one mistake in each sentence. Find and correct it.
1. We can choose various meaning of transport to move to this city.
                 A                           B                   C               D

Correction: ________=>__________

2. He should learn the traffic rules carefully and strictly following them to protect   himself.
                         A                 B                                               C                         D
Correction: ________=>__________
3. She often suffers to   noise pollution  because she lives near the crowded streets.
                                 A             B                                    C                              D
Correction: ________=>__________
4. A sign within a red triangle will warn people for something.
                   A                  B              C                 D
Correction: ________=>__________
5. Be careful when you are on roads. You must drive fast or carelessly!
         A                                     B                   C                               D
Correction: ________=>__________