Which is correct to open new window/tab of browser?

Which is correct to open new window/tab of browser?

  1. a) <a href=http://www.example.com target= "_blank"> new window/tab</a>
  2. b) <a href=http://www.example.com target= "blank"> new window/tab</a>
  3. c) <a href=http://www.example.com target= "_blank"new window"> new window</a>
  4. d) None

From the BB Assistant Programmer 2016 – Preliminary exam, question 3 of 15.

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