The correct answer is foremost part.


A. sentry
B. foremost part
C. protective covering
D. breastplate

The correct answer is (B) foremost part, spearhead; the leading portion of an advancing army; advance guard. Also, the forefront of any movement, field, or activity; the leaders of any movement, whether intellectual or political.

Vanguard comes from Middle English vandgard, Old French avangarde, variation of avant-garde.

Examples of use:

  • The vanguard of the advancing army consisted of cavalry units and infantry.
  • He prided himself on being in the vanguard of new technology in his field.

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