Julia Jennings :Which is proper English
Leesa Rowland :Those who.
Moeko Ezawa :If either is followed by the word "choose", it is proper.
Doreen Jacobi :Those who
Angela Doria :You're talking about people, so it's who.
Nicoletta Machiavelli :Proper English? .............Good Grief!
Beatrice Dalle :both are correct.
Kellie Overbey :I actually think it depends on the verb...
Dominique Swain :those who chant makes more sense than those who do chanting ( ?...see, sounds funny)
Elizabeth Harding :And then there are those who do knitting as opposed to those who knit ( I would choose the 2nd)
Stephanie McMahon :I guess it really comes down to your sentence you are constructing...
Tara Ellison :It depends on the use, but you could use both.
Karin Swenson :ex: Those who pertain to this question.
Nancy Brilli :ex: For those whom pertain to the question.
Amy Robinson :ex: There are those that assume they know the answer.
Claire Mills :I do believe proper English would be:
Susan Gilmore :Those who do whatever... (becuase you are referring to people)
Lola Gans :Had you been referring to an inanimate object, such as a car, you would say:
Sabrina Salerno :Those that go faster than whatever....
Jane Curtin :Those who....."those" refers to people, therefore use "who", "that" refers to inanimate objects, concepts, etc, not people.