Answer:
C. 3
Step-by-step explanation:
The decision to use public or private transport is individual and depends on the tastes and preferences of each consumer. If there is a proposal to stimulate the use of public transport, it is necessary to affect these preferences, which are often associated with costs.
Measure 1 would only be feasible if a study showed that there is room for tariff reduction. Public transport should be used, but it should be sustainable without relying on subsidies.
Measure 2 may be adopted, as rising private transportation costs such as tolls, fares and so on may force people to decide to use public transport, but this is a more extreme measure that affects other sectors and I would not recommend it.
Measure 3 would be recommended because it is a stimulus to the consumption of public transport. If annual passes provide discounts, consumers' perceptions may change as public transport may become more economically attractive.