The answer is: "Many critics described the movie's final scene as the most exciting (D) car chase that has ever been shot."
The presence of the word "the" before the adjective indicates that you have a superlative (<em>the most</em> something).
"Exciting" contains 3 syllables, which is too many for the superlative to take the form of a suffix -<em>est</em> at the end of the adjective (as in "the prettiest"). Therefore, the answer is "the most exciting."
The main reason as to why protecting human rights is not a
central issue for many developing countries because of the fact that they are
likely to be more concerned or more focused with the physical problems that the
country has rather than the central issues that it faced.
