1. He is the oldest of all his brothers.
2. My dress is brighter than yours.
3. He is the wisest of all the boys in the class.
4. Ritu is better than Saksshi in Maths.
5. She is senior to me. (Not sure on this one)
6. This lesson is more interesting than the previous one.
7. He is stronger than I imagined.
8. Your handwriting is improving from good to greater with each passing day.
The main idea is to emphasise how being organized, efficient and puntual helps a leader to achieve their goals. In this example, Molly Spencer the Spanish Club president, has been able raise funds and help students to go Abroad and be able to practice the spanish in a native speaking country. She is the perfect example of a leader that also inspires others and thanks to discipline, planning and organization is able to achieve efficiency.
It is B, you are finding the infinitive as a direct object, in the answer B "to drink water" is the infinitive.