Step 1: Understanding the Concept
Everything used in tissue culture must be sterile to avoid contamination.
Step 2: Match the columns
(A) Nutrient medium is sterilised by autoclaving, so A matches II.
(B) Glassware is sterilised in a hot air oven, so B matches III.
(C) Explant is surface sterilised with alcohol treatment, so C matches I.
Step 3: Conclusion
The matching is A - II, B - III, C - I.
Final Answer:
The correct matching is A - II, B - III, C - I.
\[ \boxed{\text{(B) }\text{A - II, B - III, C - I}} \]