It’s C.) Restoring old paintings to their original condition.
The answer is Spiritual. Jan van Eyck was critical toward the northern Renaissance as well as to the whole Renaissance. He is credited with the creation of the oil-coating system, which supplanted the prior egg-gum based paint strategy. The Marriage of Giovanni Arnolfini, normally called the Arnolfini Wedding, is van Eyck's most celebrated work.
Answer: Evolution it’s a process of change over time
