Final answer:
To stay within his budget, Thomas can swap Thiruvananthapuram for Jaipur and drop Bengaluru, as well as Bhubaneswar. Therefore, the correct answer is a. i and ii.
Step-by-step explanation:
To determine which itinerary changes will allow Thomas to stay within his budget, we need to compare the costs of the original itinerary and the proposed changes. Let's break it down:
- The original itinerary costs ₹25,300.
- Option i: Swapping Thiruvananthapuram for Jaipur and dropping Bengaluru reduces the cost.
- Option ii: Dropping Bhubaneswar reduces the cost.
- Option iii: Swapping Mumbai for New Delhi, Thiruvananthapuram for Jaipur, and Bhubaneswar for Lucknow may change the cost.
Based on these options, the changes that allow Thomas to stay within his budget are options i and ii. Therefore, the correct answer is a. i and ii.