Scientists and mathematicians struggle to find an explanation to the commonly seen proportion known as the "golden ratio". It has been seen a lot through out history, from ancient architecture like the Parthenon made by the greeks, to the measurements in pinecones or sea shells.
The type of line in art that is used to show an object's outline and other lines or edges within the object are what are called contour lines.
Hope I helped let me know if you need further explanation! :)
<h2>The Correct answer is <em>B.) Albrecht Durer</em></h2>
You have to show us which hymns were presented. Maybe a screen shot or something