The antependium is the front space of a block altar.
What is the antependium?
the word antependium derived from the Latin word ante- and pendēre which means “to hang before”.
An antependium is also called a parament or hanging.
When speaking specifically of the hanging for the altar, an altar frontal, is an ornamental piece, normally of artifact, but it is also metalwork, stone, or other material that can adorn a Christian altar. It is the hanging for the front of the altar.
Therefore, antependium is the front space of a block altar.
Hence, option A is correct.
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