Look at this Venn diagram.

A Venn diagram. Circle 1 is labeled Manual with entries Physical, Hands on. Circle 2 is labeled Non-manual with entries Nonphysical, Inactive. The overlap is labeled Both with entries Skillful, Detailed, Good income.

Based on the Venn diagram, in which way do manual and nonmanual careers contrast?

Manual jobs require many skills, while nonmanual jobs require few skills.
Manual jobs require few skills, while nonmanual jobs require many skills.
Manual jobs do not require hands-on activity, while nonmanual jobs do.
Manual jobs require hands-on activity, while nonmanual jobs do not.