✅ Correct Answer: 1876
Source: This question is taken from the Assistant BS-16 Special Education Department
✅ Correct Answer: A.G.Bell
Source: This question is taken from the Assistant Punjab Police PPSC Past Paper 2024
✅ Correct Answer: Alexander Graham Bell
Source: This question is taken from the Excise And Taxation Inspector & Narcotics Control (Bs-16)