49. A new Information Revolution is well under way. _______________ (1) Soon enough, it will surely engulf all institutions of society. (2) It is not only a revolution in technology, machinery, techniques, software or speed. (3) It is also a revolution in concepts. (4) It has started in business, enterprise, and with business information. (A) 4213 (B) 1432 (C) 3214 (D) 2341