were born or are born?

Which is correct?
a) Those who were born in 1972...
b) Those who are born in 1972...

Does the "were" indicate time of birth i.e. in 1972 - the past or would it connote the idea of those who are dead but were born in 1972? Help.

Thanks

I don't think you can use b) because 1972 is in the past. So I'd have to say yes to a).

Option b) where time is a factor, implies a kind of generalisation. eg. "those who are born in desperate times suffer from malnutrition" but because an exact year "1972" is named, a) must be used IMO.

Thanks.