In civil cases, Texas law requires plaintiffs to prove their cases beyond the "shadow of a doubt."

In contrast to the international economic interaction of previous eras, in the contemporary era of globalization, economic interaction is more comprehensives and fast

Indicate whether this statement is true or false

It is difficult to prove the success of a deterrent threat because it is impossible to __________

a. tell why states maintain behavior rather than change behavior b. judge the speed with which a state may respond to a deterrent threat c. tell why states change behavior rather than maintain behavior d. determine the precise target of a deterrent threat