I'll give you a question, please answer with step-by-step reasoning process.
To learn must have the right book, to work efficiently what must one have?\nOptions:\n- improve yourself\n- become knowledgeable\n- have tools\n- persistence\n- have more knowledge

have tools
Have tools means to have any instrument or simple piece of equipment that you hold in your hands and use to do a particular kind of work.

To learn must have the right book, to work efficiently one must have tools.

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Thus, the answer is have tools