This could happen during times especially hard for the nation, such as after the WWII, and when no other alternatives were really available.
For example, when Eisenhower was asked to be the president, the current president, Truman, was very unpopular. Truman was a Democrat, and the democrats did now believe he could win re-election, and as Eisenhower was very popular at the time they tried to win him over to their side. In the end however, Eisenhower run as a democrat.
Answer:
The Answer is A.
Allied Powers: United States, England, France, Soviet Union vs.
Axis Powers: Germany, Italy, Japan
One assumption of the perfectly competitive model is free entry and exit. this assumption most directly leads to the implication that positive economic profit is only possible in the short run.
Profit is the difference between the return an economic agent earns from its output and the opportunity cost of its input. It equals total revenue minus total costs (including explicit and implicit costs).
Economic profit or loss is the difference between the revenue from the sale of output and the cost and opportunity cost of all inputs used. Opportunity cost and explicit cost are subtracted from earned revenue when calculating economic profit.
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Calling the police, calling the fire department, calling an ambulance etc.