Correct option is CGiven: 26⁻¹⁹ ÷ 26¹⁸ × 26³ Concept Used: ma÷mb=ma−b ma×mb=ma+bm^a \div m^b = m^{a-b} \\ \ \\ m^a\times m^b = m^{a+b}ma÷mb=ma−b ma×mb=ma+b Solution: 26−19÷2618×263 =26−19−18+3 =26−34 26⁻¹⁹ ÷ 26¹⁸ × 26³ \\ \ \\\ = 26^{-19 -18 +3} \\ \ \\ = 26^{-34}26−19÷2618×263 =26−19−18+3 =26−34