Please help me this is confusing me a lot Read the paragraph.

Allisa had been anticipating the chess match all week. She felt highly prepared, and she had been studying new moves and strategies. Many people feared her opponent, Lex Walden, but she had also been studying his game, and she had figured out his main weakness. Lex would never know what hit him.

What word best completes the sentence?

anxiously
cautiously
studiously
eagerly