What is more preferable way to say about person in general without definite gender? Is it one, he/she or we? I would not thought about that unless had not read Martin Eden by Jack London. There was a moment when Ruth Morse the embodiment of education in the plot of the book said to Martin that it is really uneducated to say he/she and we.
For example what is the best choice out of these three:
Let us suppose
onehas the task.
Let us suppose
he/shehas the task.
Let us suppose
wehave the task.
?
Usage of "they" / "them" / "their" when the person's gender is not known
There is no we and one problem in the question.
UPDATE
I am not sure how can someone be so blind to not being able to see the difference between the One, He, She, We and the They, Them, Their. That are completely different words. My question is about the former, not latter. So, I can not understand why my question is marked as a duplicate about the latter. Unless an explanation is provided, I will consider it as an act of fraud. From my point of view the act is to get me stop using the StackExchange by bullying me. I am very confused that moderators allow such things here.