First we need to find out which sentences makes sense.
A is not related so is b, and c
so therefore your answer is D. It's related to each othere
It is assumed here that children should be safe, so when they play outside, it should be daylight, and if the daylight is longer, they can also play outside longer than usually.
C- "The Beatles are still my favorite band," Charles said.
Cars were made to make transportation easier
Cause: Cars were created
Effect: Transportation got easier