1) If CI(A)= Int B = (1,4) for some subsets A,B of [0,6].Then ([0,6],T) is: %3D...

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1) If CI(A)= Int B = (1,4) for some subsets A,B of [0,6].Then ([0,6],T) is: %3D A)disconnected B) connected C) second countable D)separable 2) The following is a first countable space: A) (R, Tcot) B) ([0,1],Tcoc) C) (R,Tdis) D) (R-Q, Tcot) 3) The following is a second countable space: A) (R, Tcot) B) (Q ,Tcot) C) (R,Tdis) D) (R-Q, Tcoc) I just want the final answer without the solution method for these three guestions 1) If CI(A)= Int B = (1,4) for some subsets A,B of [0,6].Then ([0,6],T) is: %3D A)disconnected B) connected C) second countable D)separable 2) The following is a first countable space: A) (R, Tcot) B) ([0,1],Tcoc) C) (R,Tdis) D) (R-Q, Tcot) 3) The following is a second countable space: A) (R, Tcot) B) (Q ,Tcot) C) (R,Tdis) D) (R-Q, Tcoc) I just want the final answer without the solution method for these three guestions