Which Shakespeare line is echoed in the title Brave New World, and what is its ironic meaning?

Which Shakespeare line is echoed in the title Brave New World, and what is its ironic meaning?

• A. "Oh brave new world" from The Tempest; ironically masks dehumanization.
• B. "All the world's a stage" from As You Like It; ironically references performance.
• C. "To be, or not to be" from Hamlet; ironically shows existential crisis.
• D. "Parting is such sweet sorrow" from Romeo and Juliet; ironically shows happiness.

Answer: (A)