The correct answer is: B. Unfaithful amplification
Biasing is the process of setting the operating point of a transistor so that it can amplify a signal faithfully. If biasing is not done, the transistor will not be able to amplify the signal properly and the output will be distorted.
Option A is incorrect because the base current is not affected by biasing.
Option C is incorrect because excessive collector bias can cause the transistor to overheat and damage itself.
Option D is incorrect because biasing is essential for faithful amplification.