К какому стилю речи относится текст:

Mr. Chairman, Ladies and Gentlemen: It is indeed a great and underserved privilege to address such an audience as I see before me. At no previous time in the history of human civilization have greater problems confronted and challenged the ingenuity of man’s intellect than now. Let us look around us. What do we see on the horizon? What forces are at work? Whither are we drifting? Under what mist of clouds, the future stand obscured? My friends, casting aside the raiment of all human speech, the crucial test for the solution of all these intricate problems to which I have just alluded is the sheer and forceful application of those immutable laws which down the corridor of Time have always guided the hand of man, groping, as it were, for some faint beacon light for his hopes and aspirations.

Выберите один ответ:

a. к деловому

b. к разговорному

c. к научному

d. к публицистическому