Troublesome friends are often friends who can cause troubles for different reasons. Friends who get drunk and start breaking the law are one example of this that is quite common. Another is friends who break the law in general, pushing you in a moral and ethical dilemma on whether you should tell on them to the law enforcment.
Generally speaking, when a nation moves from an agricultural economy to an industrial economy "<span>C- There is a greater need for education and training", since more jobs in the industrial economy require special skills. </span>
