Who discovered that iodized silver plates could produce direct positive images? discovered that iodized silver plates could produce direct positive images.

Louis Jacques Mande Daguerre discovered that iodized silver plates could produce direct positive images.

Explanation:

i believe the answer is: a.  abstract forms were often used to represent human figures.

representing human figures in abstract forms is often used in the geometric period, not hellenistic  period.   during the hellenistic  period,   aesthetic value derived from creating arts which mimic the actual shape of a certain object or individuals.

hope this ! < 3

answer; ravenna,italy;