probability question please help me thank you

Rita is making a beaded bracelet. She has a collection of 160 blue beads, 80 gray beads, and 240 pink beads. What is the estimated probability that Rita will need to pick at least five beads before she picks a gray bead from her collection?

Use the table of randomly generated outcomes to answer the question. Each letter represents the first letter of the bead color.

PBBB GPBP PBPP GGGG BPBP GBPB GPBP GBPB
PBPP  PPGP PBGG GPPB PPPG BPPP PPPG BPGP
GGGG PGPG PPPP PPPP BBBG PPGB BBBG PPGB
PBPB  BPPG PBBG BPBB PGPP PBPP PPPP PBPP
PPBP PPBB PGBP BPPB PPPB  PPPB PGGB BBBB

  • A
  • B
  • C
  • D