Which inventor and engineer, born in 1850, developed a colour-television system in the 1940s, funded by his own small manufacturing business, decades before colour broadcasting became standard?

• A Guillermo Gonzalez Camarena ✓
• B Manuel Sandoval Vallarta
• C Luis Ernesto Miramontes
• D Victor Celorio

Gonzalez Camarena patented a chromoscopic adapter for black-and-white TV sets in 1940 at age 23, one of the earliest practical colour TV systems.