Of unknown and unadmitted authorship

  • A. Gullible
  • B. Anonymous
  • C. Unanimous
  • D. Vexation

Answer: Option B

Detailed Answer

One word substitute is Anonymous.

Gullible: easily persuaded to believe something; credulous.
Anonymous: (of a person) not identified by name; of unknown name.
Unanimous: (of two or more people) fully in agreement.
Vexation: the state of being annoyed, frustrated, or worried.

About the author

Prabhat

I am Prabhat, Professional Blogger And Digital Marketer from Jodhpur, Rajasthan.

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