Question 3:

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What is the meaning of the bold word as it is used in the sentence?
The Union Pacific Railroad Company’s energetic main boss, Thomas Durant, was determined to make his company a success. He purposefully involved political figures in his plans, and eventually Abraham Lincoln signed the Pacific Railway Act into law.

Overly confident or arrogant

Unable to decide about which course to follow

Having been learned through an investigation

Strongly motivated to succeed

Strongly motivated to succeed