Network externalities are important because choose one:

(a) increasing membership increases the benefits to other members, which increases quantity demanded
(b) increasing benefits imposes a negative externality on existing members
(c) as the network size grows, the services become cheaper
(d) their large networks inflict negative externalities on potential competitors

(C) as the network size grows, the services become cheaper.

Explanation:

Network externalities relate to the economies of scale, it is basically the relation of demand with the quantum.

As when the production increases then due to increase in number of units, the cost of producing is less. Accordingly if the supply is more then price is less for the consumers. This clearly relates to services also.

Thus, when there is a growth in network size then the cost of such service or goods tend to decline as on per service basis.

the correct answer is:

it required the president to inform congress within forty-eight hours of any new troop commitment.

the war powers resolution (1973) is a federal law designed to limit the u.s. president’s ability to initiate or intensify military actions abroad without the approval of the congress.

it establishes that the president can send armed forces into action abroad only by declaration of war by congress, statutory authorization, or in case of a national emergency created by attack upon the united states, its territories or possessions, or its armed forces.

it requires the president to notify congress within 48 hours of sending armed forces to military action.

answer; /// the above statement is (true);