Concept:The phrase “introduced into” is incorrect when describing a past event where something was brought to a country; “introduced in” is the correct preposition.
Explanation:The sentence describes the historical introduction of printing to England.
The verb “introduced” is followed by a preposition that indicates the location where the event occurred.
The preposition “into” implies movement from outside to inside a space, like “walked into a room.”
However, in this context, England is a fixed country where the event happened, so the static preposition “in” is required.
Therefore, part (a) should read “The art of printing was introduced in England.”
Parts (b) and (c) contain no errors.
So the error lies only in part (a).
Answer:(a)