It is always advisable to set aside 5%-10% of the average net income of a person
Explanation:
1. Not Fixed- It is not a standard set of percentage that can be set aside for transportation expenses as income of people varies from person to person for which if has no fixed percentage.
2. Variables-There are many variables that should be taken into consideration which can be the salary of a person and the kin of transportation it take which further can be a private or a public transport.
Hence, as a whole it is advisable to save 5%-10% of the total income keeping above factors in mind.
I'd say the answer is A) like rivers, people keep moving and finding new paths. He wants to say that even black people will manage to find a good future, following a new path, the same way any other human being will. The other examples do not seem correct to me.
