Final answer:
The MATLAB code will display the string 'b' because neither condition of the if statement is met. '5' is not greater than '6', and '1' is not greater than '6'; hence, the else block is executed.
Step-by-step explanation:
The MATLAB code provided contains a conditional statement which checks two conditions using the logical AND operator (&). The variables are assigned as a=5, b=1, and c=6. The condition in the if statement checks if a>6 AND b>c. Since neither of these conditions is true (5 is not greater than 6, and 1 is not greater than 6), the code will execute the else block, which contains the disp function to output a string.
Therefore, the output of the provided MATLAB code will be the string 'b', as it is the argument passed to the disp function within the else block.