Concept:
Prepositions often form fixed expressions with certain verbs. Such combinations are called collocations. The verb “name” forms a standard collocation with the preposition “after” when a person, place, building, institution, road, stadium, or monument is given the name of a famous or respected individual.
• Name after someone = Give the name of a person to something in order to honour or remember that person.
• This is a fixed and commonly used expression in English.
Step 1: Understanding the meaning of the sentence.
The sentence tells us that a stadium received the name of the famous freedom fighter Subhash Chandra Bose.
When something receives the name of a respected person as a mark of honour, English uses the expression:
\[
\text{named after}
\]
Therefore, we need a preposition that expresses dedication or honour.
Step 2: Evaluating all the options.
• as
The phrase “named as” is generally used when appointing or declaring someone in a particular role.
Example:
\[
\text{He was named as the team captain.}
\]
It does not fit this sentence.
Hence, incorrect.
• with
The preposition “with” indicates association or accompaniment.
It cannot be used with the verb “named” in this context.
Hence, incorrect.
• after
The phrase “named after” means given someone's name in honour of that person.
This perfectly matches the context.
Hence, correct.
• on
“Named on” is not a standard English expression for naming a place after a person.
Hence, incorrect.
Step 3: Completing the sentence.
The sentence becomes:
\[
\text{The Stadium was named after Subhash Chandra Bose.}
\]
Therefore,
\[
\boxed{\text{after}}
\]
is the correct answer.