Correct option is B
The segment in the sentence "He is too immature for handle the situation" that contains a grammatical error is (b) "for handle."
- Explanation: The correct construction should include "to" before the base form of the verb "handle," not "for." The phrase should be "to handle."
- Corrected Sentence: "He is too immature to handle the situation."
This correction changes "for handle" to "to handle," ensuring the sentence uses the proper infinitive form of the verb, which is necessary after the expression "too... to."