Assume a pipe has been created, and the calling process has forked three children. All processes keep their read and write ends open.Which of the following are true?Group of answer choicesSome of the children can decide to be readers and some writers, but no child is allowed to write to another child.The child process blocks while waiting for the parent process to write data.Placing system call read$()$ on the read end of the pipe will cause the calling process to block and wait a fixed amount of time.If the writer writes data to the pipe, the reader that called read first will read the data first.If the writer writes data of the size of half integer and the readers have requested to read data of one integer then one reader returns.If one of the children terminates no harm to the system of parent$-$children using pipes is caused