According to the Traditional View, in What Direction Is the Slope

Multiple Choice

According to the traditional view, in what direction is the slope of the production function, with capital per worker on the horizontal axis and output per worker on the vertical axis?

A) The slope is positive and becomes steeper as capital per worker rises.
B) The slope is positive and becomes flatter as capital per worker rises.
C) The slope is constant.
D) The slope is negative and becomes steeper as capital per worker rises.