Response not detected in classification learner Matlab

Hi everyone! I am new to matlab and this is my first time using classifier app. I want to ask why does mine does not recognize the response? I wathced youtube tutorial and saw many of them were able to recognize the response. But, for me, I cannot even click at the response. My data is in table.

[Shraddha Jain]

Hi Noor,

It would be helpful to investigate further on this issue, if you could send a sample of the table 'preTable1' with its properties.