Nanette must pass through three doors as she walks from her company's foyer to her office. Each of these doors may be locked or

Question

Nanette must pass through three doors as she walks from her company's foyer to her office. Each of
these doors may be locked or unlocked.
Let C be the event that at least two doors are in the same condition. List the outcomes of C. [Let "L"
designate "locked" and U" designate "unlocked".]
{LLL, LLU, LUL, LUU, ULL, ULU, UUL, UUU}
(LLL, UUU, LLU, LUL, ULL}
LLU, LUL, ULL, LUU, ULU, UUL}
O none of these

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