Cho các ma trận   0 2 1 1 0 1 2 3 ;B 2 3 ; 2 3 1 3 1 3 3 4 2 n t A n C n t t                                         a/ . 3 T D A B C

C Both gyms charge the same monthly rate and the same membership fee.

Step-by-step explanation:

Each gym charges a monthly rate plus a one-time membership fee.

This resulted in the equation 75 = 75.

The total fee for the gym includes both the monthly charges plus one time membership fee.

If the equation is equal at the end, this means both the gym have same charges.

Therefore, option C is correct. Both gyms charge the same monthly rate and the same membership fee.