...
CROSS JOIN LATERAL jsonb_array_elements (jsonb_extract_path (cf.jsonb, 'selectField', 'options', 'values')) AS values (jsonb)
----- "jsonb_array_elements" works on the 'values' array object at the end of the parentheses; we use this extract expression because "values" is an array
----- "jsonb_extract_path" looks for the path of elements to follow in order to get to the values array – the objects elements listed must be in the same hierarchical order as they appear in the table
----- the entire cross join statement produces a jsonb object which I named "values" (note: what you name this object is totally arbitrary - you could call it "stuff" if you felt like it – "stuff (jsonb)")
...