#! /usr/bin/awk -f   BEGIN &#123;       print index&#40;&quot;sanfoundry&quot;,&quot;linux&quot;&#41;   &#125;
A. sanfoundry linux
B. sanfoundry
C. 0
D. none of the mentioned
Answer:A
#! /usr/bin/awk -f   BEGIN &#123;       print index&#40;&quot;sanfoundry&quot;,&quot;linux&quot;&#41;   &#125;
A. sanfoundry linux B. sanfoundry C. 0 D. none of the mentioned