Identify the sentences in which the word 'extravagant' has been appropriately used.

A. She managed to build a good investment portfolio by leading a very extravagant life.

B. His extravagant lifestyle led him to splurge on unnecessary things and never save for a rainy day.

C. His extravagant claims to solve the crisis were indeed exaggerated and failed miserably.

D. She was annoyed with him as he got her an extravagant gift even though they didn't have enough to eat.

Choose the correct answer from the options given below:

Choose the best option to fill in the blank with the correct phrase:

The terms of the agreement were ________ both the parties, ensuring a smooth transaction.

From the given options, select the one which will correctly replace the expression

"writing instruments and other office materials"

Fill in the blank with the correct word from the options given below:

From the group leader's tone, I could _____ that he was unhappy with the management's decision.

Choose the most appropriate word to fill in the blank in the given sentence:

The newly-appointed Vice-Chancellor of the university is quite _______ in responding to the grievances of the students.

Fill in the blank with the most appropriate word from the options given:

The _________ news dampened the wedding festivities.

Choose the correct word for the following expression from the given options:

The art of speaking without moving your lips and making it look as if your voice is coming from a puppet or another person is-