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At the meeting they discussed three different____to the study of mathematics.

A. approaches     B. means      C. methods     D. ways

At the meeting they discussed three different  ______to the study of mathematics.

     A. approaches        B. means             C. methods             D. ways

At the meeting they discussed three different  ______to the study of mathematics.

     A. approaches        B. means             C. methods             D. ways

At the meeting they discussed three different    ____   to the study of mathematics.

A. approaches            B. means              C. methods          D. ways

At the meeting they discussed three different ______ to the study of mathematics. 

   A. approaches       B. means           C. methods        D. ways

 At the meeting they discussed three different        to the study of mathematics.

A. approaches            B. means           C .methods          D. ways