The author considers specialization as:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. An obstacle.
It is clearly mentioned in the passage that "Implanting standards, right values, the science of good and evil are an essential part of education. Many forces thwart this to work, but two of the most serious hindrances to it are examinations and specialization.
Hence, the chosen option will be correct.