Final answer:
In 'The Handmaid's Tale,' Ofglen reveals the secret password 'Mayday' to Offred, signaling her alliance with the resistance movement against Gilead's regime.
Step-by-step explanation:
The question refers to a moment in Margaret Atwood's novel The Handmaid's Tale, when the character Ofglen reveals a secret password to the protagonist, Offred. The password Ofglen shares is 'Mayday', which indicates that she is part of the rebellious underground movement opposed to the oppressive regime of Gilead. This password is vital for communication and identification among the members of the resistance within the society depicted in the novel.