Q3 Single choice Mark for later Which function call produces the string 'LORE_IPSUM_FACTUM'? A from_mixed( val = 'LorelpsumFactum' sep = '_' ) B condense( to_upper( 'LorelpsumFactum' ) ) C to_upper( condense( 'LorelpsumFactum' ) ) D to_mixed( val = 'LorelpsumFactum' sep = '_' ) Correct answer