$D i r e c t i o n : R e a d t h e f o l l o w \in g \in f or m a t i o n c a r e f \underline{l} y and a n s w e r t h e q u e s t i o n s t \hat{f} o l l o w .$ There are three on-off switches A, B, and C on a control panel. They have to be changed from an initial setting to a second setting according to the following conditions: In case only switch A is the switch in the initial setting, then turn on switch B. In case switches A and B are the only switches on in the initial setting, then turn on switch C. In case all the three switches are on initial setting, then turn off the switch C. For any other initial setting, turn on all switches that are off and turn off all switches, if any, that are on. $I n c a s e o n l y B i s o n \in t h e sec o n d s e \in g, w h i c h a m o n g t h e f o l l o w \in g c o \underline{d} h a v e b e e n t h e \in i t i a l s e \in g ?$

A on, B on, C on

A on, B off, C off

A on, B on, C on

A off, B off, C on

None of these

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D i r e c t i o n : R e a d t h e f o l l o w \in g \in f or m a t i o n c a r e f \underline{l} y and a n s w e r t h e q u e s t i o n s t \hat{f} o l l o w .

There are three on-off switches A, B, and C on a control panel. They have to be changed from an initial setting to a second setting according to the following conditions: In case only switch A is the switch in the initial setting, then turn on switch B. In case switches A and B are the only switches on in the initial setting, then turn on switch C. In case all the three switches are on initial setting, then turn off the switch C. For any other initial setting, turn on all switches that are off and turn off all switches, if any, that are on.

I n c a s e o n l y B i s o n \in t h e sec o n d s e \in g, w h i c h a m o n g t h e f o l l o w \in g c o \underline{d} h a v e b e e n t h e \in i t i a l s e \in g ?

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D i r e c t i o n : R e a d t h e f o l l o w \in g \in f or m a t i o n c a r e f \underline{l} y and a n s w e r t h e q u e s t i o n s t \hat{f} o l l o w .

I n c a s e o n l y B i s o n \in t h e sec o n d s e \in g, w h i c h a m o n g t h e f o l l o w \in g c o \underline{d} h a v e b e e n t h e \in i t i a l s e \in g ?

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