Afriend is concerned that the declining birth rate will be a disaster for your generation and those that follow because so much of the country’s economic prosperity will rest on the shoulders of a smaller and smaller proportion of working adults

i have to go with a for this one

answer; self_ disclosure;

this is not a question

an important point to remember about correlation is that while there is a _statistical_ relationship correlation does not equal _causation_

the first answer is: statistical

the second answer is: causation