Aşağıdaki metni okuyun ve soruyu cevaplayın.
The invention of the light bulb by Thomas Edison in $1879$ revolutionized the world. Before the light bulb, people relied on candles, oil lamps, or gas lights, which were often dim, dangerous, and produced a lot of smoke. Edison's practical and long-lasting incandescent light bulb provided a safe, clean, and efficient source of artificial light. This invention extended working hours, made homes safer, and paved the way for modern electrical systems, significantly changing daily life and industrial practices.
Metne göre, ampulün icadından ÖNCE insanlar ışık için neye güveniyordu?
A) Güneş panelleri
B) Mumlar, gaz lambaları veya gaz ışıkları
C) Elektrikli fenerler
D) Floresan lambalar
