Final answer:
To match the elements of the Portinari Altarpiece with their symbolism: scattered violets represent Humility, three red carnations symbolize the Passion of Christ, and orange lilies signify the nails of Christ's crucifixion.
Step-by-step explanation:
The central panel of the Portinari Altarpiece by Hugo van der Goes is filled with symbols that have specific religious significance. These symbols were a common feature in Northern Renaissance art, which often imbued everyday objects with spiritual meaning. In this context, we can match the following elements to their supposed symbolism: Humility is symbolized by b. scattered violets, which were often used in art to represent modesty and humility. The Passion of Christ is associated with a. three red carnations, as the red color evokes the blood of Christ and carnations were a symbol of the Passion during the Renaissance. Lastly, c. orange lilies represent the nails of Christ's crucifixion, where the flower itself can be seen as a symbol of suffering and martyrdom in Christian iconography.