Which expressions are correct in the standard ideal approximations for the speed of sound?

Select all that apply

• Option A

  In a fluid, v = √(B/ρ).

• Option B

  In a thin solid rod, v = √(Y/ρ).

• Option C

  In an ideal gas, v = √(γP/ρ).

• Option D

  In an ideal gas, v = √(γRT/M).