A revolving gas lantern enclosed in red and green glass, installed on a street corner in London in 1868 to regulate buggy and wagon drivers and pedestrians, was an early ________ of the modern traffic light. aberration

accelerated

artisans

avail

caprice

conjecture

context

crescendo

deviate

excrescence

incur

interjection

intervene

obituary

precursor

recant

Verified Answer :

"precursor" is the correct answer. It means someone or something that came before