Arrange the following sentences to form a coherent paragraph:
(A) Now under liberated economy they are learning to compete domestically and globally.
(B) In India corporations until recently achieved success by avoiding competition, using protected and regulated domestic markets.
(C) The trend is irreversible.
(D) Business leaders are preparing themselves to meet competitive challenges, and to avoid being swept away.
Step 1: Understanding the logical flow of sentences.
Starting with (B) sets the historical context of how corporations previously operated under protected markets. Then (A) transitions into the present scenario under a liberated economy. (D) introduces the current actions of business leaders, and (C) concludes with a remark on the trend's permanence.
If the roots of the quadratic equation \( ax^2 + bx + c = 0 \) are real and equal, then: