Did queen elizabeth kill her own daughter

No

Explanation:

He intercepted Edward V while the latter was travelling from Ludlow, where he had been living as Prince of Wales, to London to be crowned king. Edward V was placed in the royal residence of the Tower of London, ostensibly for his protection. Elizabeth Woodville fled with her younger son Richard and her daughters, taking sanctuary in Westminster Abbey. Gloucester asked Archbishop Bourchier to take Richard with him, so that the boy could reside in the Tower and keep his brother Edward company. Elizabeth Woodville, under duress, eventually agreed.[11]

a.   it resulted in widespread unemployment.

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