Hello @HannahSelbie ,
please follow these steps:
1. After the "Get response details" action, please add a "Compose" action where putting the following expression, in order to remove unwanted characters:
replace(replace(replace(replace(outputs('Get_response_details')?['body/r2ef9e7cf3b34464eb17dd32a2493ba61'], '"',''),'[',''),'\',''),']','')
Instead of "r2ef9e7cf3b34464eb17dd32a2493ba61", please put your Forms question code.

2. Add another "Compose" action where putting the following expression, in order to remove unwanted characters:
replace(replace(replace(replace(outputs('Get_response_details')?['body/r0394fa09e0b54bcbba759eb13490c3ad'], '"',''),'[',''),'\',''),']','')
Instead of "r0394fa09e0b54bcbba759eb13490c3ad", please put your Forms question code.

3. Then, add the "Condition" control, in which you should add the Compose outputs as first parameters, and the choice values as second ones:

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BR,
Marco