Absolute addressing mode is a type of addressing mode used in computer architecture. It refers to the method of specifying the memory address of an operand or data directly in the instruction itself. This means that the instruction contains the exact memory address where the data is located, rather than a relative or symbolic representation.

In the context of the given options, the absolute addressing mode is the one that is replaced. Let's discuss each option to understand why:

a) Relative addressing mode: In relative addressing mode, the memory address is specified relative to the current instruction pointer or program counter. It allows for efficient use of memory by using shorter address representations. This addressing mode is not replaced by absolute addressing mode.

b) Protective addressing mode: Protective addressing mode is not a commonly known addressing mode in computer architecture. It is possible that this option is either incorrect or refers to a specific system or architecture where it is used. Without further information, it is difficult to determine why absolute addressing mode would replace protective addressing mode.

c) Virtual addressing mode: Virtual addressing mode is used in systems that implement virtual memory. It allows programs to use more memory than is physically available by mapping virtual addresses to physical addresses. Absolute addressing mode and virtual addressing mode serve different purposes and are not directly related. Therefore, absolute addressing mode does not replace virtual addressing mode.

d) Temporary addressing mode: Temporary addressing mode is not a commonly known addressing mode in computer architecture. Similar to option b, it is possible that this option is either incorrect or refers to a specific system or architecture where it is used. Without further information, it is difficult to determine why absolute addressing mode would replace temporary addressing mode.

In conclusion, out of the given options, the absolute addressing mode is the one that is replaced. However, it is important to note that the context and specific system or architecture being referred to are not provided, which limits the accuracy of the explanation.