A teacher has a large container of blue, red, and green beads. She reports to the students that the proportion of beads in the container is 0.30. The students feel the proportion of blue beads is lower than 0.30. A student randomly selects 50 beads and finds that 12 of the beads are blue. Which hypothesis would test the students' claim?

A. H₀: rho = 0.30, Hₐ: rho > 0.30
B. H₀: rho = 0.30, Hₐ: rho < 0.30
C. H₀: rho = 0.30, Hₐ: rho ≠ 0.30
D. H₀: rho = 0.24, Hₐ: rho < 0.24