I believe your answer is D
The correct answer is selective attention.
Molly can selectively choose what to focus her attention to and what to mute. In her case, she is listening only to what the teacher has to say and not pay attention to what her friends are talking about around her. She is able to do this because her selective attention has improved.
Explanation:
Cultural changes are the changes in the culture of a society by introducing new norms, traits, values, etc. Cultural changes occur when new people meet with the people of the existing society. New people bring about change in the society. Also cultural changes occur when people from societies meet with the people of other cultures and bring their norms, traits, values, etc, in their own culture.
So if the transportation systems are efficient enough between the rural and the urban areas of the country, people are more likely to move around different areas and see different new cultures. Due to efficient transport systems for people within the country, like railways system, bus system, coach facilities, etc, people from urban areas may visit the rural areas and can affect the culture of rural areas. Similarly, people from rural areas can visit people from urban areas and can see enormous cultural norms and traits in other cities and can bring back those values to their societies, which will bring about cultural change in rural societies as well. So efficient transport systems has a great impact in bring about cultural change.
Answer:
parental controls or the air horn
Explanation:
parental controls limit the time children have to be creative(1) and they can restrict which parent can do what to each device if only one of them knows the password(2)
the air horn is an invention that is very loud and annoying(1) and there is no real use for it(2)