Which of the following best shows the process of evolution

23. public and private investment in infrastructure include all of the following except a) worker knowledge and skill development b) telecommunication systems, internet provider systems, and power distribution systems c) highways, transit systems, airports, harbors, and educational facilities d) fire departments, police departments, and public safety systems e) water systems, wastewater treatment systems, and navigational systems

How do astronomers measure the amount of dark matter in the universe

Can someone answer this question without telling me to try my best if i don’t finish my flvs work will i not be able to move to the next grade