At the time when one individual actions develops the benefits for others but at the same time they dont pay so it is to be known as positive externality
At the time when one individual action develops loss but the other who received the loss because of the action of the person so for this they didnt get the compensation so it is the negative externality
As we can see that there is three types of values so the correct option is c.
Explanation: In simple words, spending multiplier refers to the effect that the spending from the govt have on an economy. As per this effect, if the govt. spends a little on the economy the multiplier effect will come into force and make a major impact on the organisation.
Government spending refers to the total outflow of resources made by the govt. for the betterment of economy. However the decrease in tax will not directly be considered an outflow but it surely does increase their revenue leading to more demand in the economy.
Hence from the above we can conclude that the correct option is B .
Sam is held responsible for the bridge collapse based on his role as the engineer in charge of the project. As an engineer care has to be taken in making accurate calculations and design to ensure there are no accidents or failure as a result of poor design.