Match each of these periods of ancient Greek art with the technique that was developed during that period.
Hellenistic
Black-figure pottery
Classical
?
Frieze carving
Archaic
?
Linear perspective

The most basic method for controlling horizontal sway is to simply tighten up the structure. at the point where the horizontal girders attach to the vertical column, the construction crew bolts and welds them on the top and bottom, as well as the side. this makes the entire steel super structure move more as one unit, like a pole, as opposed to a flexible skeleton.

Im just guessing but