Answer:
C. an example of open-source software.
Explanation:
open-source software is the type of software in which anyone can access, it can also be shared And modified by anyone simply because ita accessible to the public.
Hence and open source software's source code can be
inspected, enhanced and modified by anyone. A typical example is Linux.
Packet loss is typically resolved by time-outs and retries. For applications where a duplicate operation doesn't matter this is acceptable.
50 because the negative doesn’t matter when getting an absolute value
