Which of the following is correct if PQ and RS are parallel lines?

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OK
Fatal error: Uncaught wfWAFStorageFileException: Unable to save temporary file for atomic writing. in /var/www/html/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/storage/file.php:35
Stack trace:
#0 /var/www/html/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/storage/file.php(659): wfWAFStorageFile::atomicFilePutContents('/var/www/html/w...', '<?php exit('Acc...')
#1 [internal function]: wfWAFStorageFile->saveConfig('livewaf')
#2 {main}
thrown in
/var/www/html/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/storage/file.php on line
35