A.\({\left( {x + 2} \right)^2} + {\left( {y - 5} \right)^2} + {\left( {z - 1} \right)^2} = 16\)  
B.\({\left( {x + 2} \right)^2} + {\left( {y - 5} \right)^2} + {\left( {z - 1} \right)^2} = 4\)
C.\({\left( {x + 2} \right)^2} + {\left( {y - 5} \right)^2} + {\left( {z - 1} \right)^2} = \dfrac{{25}}{9}\)
D.\({\left( {x - 2} \right)^{^2}} + {\left( {y + 5} \right)^2} + {\left( {z + 1} \right)^2} = 16\)

A.2                   
B.1                    
C.3                         
D.4

A.\(\sqrt {11}  - \sqrt 5 \)                    
B.6                   
C.\(\sqrt 5  - \sqrt {11} \)                          
D.3

A.\(x - 5y - z + 18 = 0\)  
B.\(x - 5y + z - 22 = 0\)
C.\(x + 5y - z + 18 = 0\)  
D.\(x + 3y - z + 12 = 0\)

A.\(( - 1;1).\)
B.\(( - 3;1)\)
C.\((1;3).\)
D.\(( - 1;3).\)

A.\(78\pi \)
B.\(650\pi \) 
C.\(325\pi \) 
D.\(39\pi \)

A.2 
B.0  
C.4  
D.6

A.what you have done
B.that you have done
C.what have you done
D.whether have you done

A.the fact that the president was in poor health
B.why the president was in poor health
C.that the president was in poor health
D.that was the president in poor health

A.to take which English course
B.which English course you should take
C.that which English course to take
D.which English course should you take