When driving, placing a towel on the seat...
A)is advisable, especially in summer, to protect the seat.
B)poses no danger.
C)can promote the submarine effect.Correct
For the seatbelt to be effective and fulfil its function, it must be approved, properly anchored, adjusted, and fitted to the body, and correctly fastened. A seat that is too reclined, or the use of cushions, towels, or unsuitable seat covers, can produce the submarine effect, which is when the seatbelt is unable to restrain us during an accident and we slide under the abdominal strap.