Dropdown multiple nested
Choose an option
This is a choice group element A
This is a choice element A1
This is a choice element A2
This is a choice element A3
This is a choice group element B
This is a choice element B1
This is a choice element B2
This is a choice element B3
This is a choice group element B
This is a choice element C1
This is a choice element C2
This is a choice element C3