. Fllowing code fragment shows the Apple goto fail: goto fail, bug [1+1.5+1-3.5 points) if (lerr sSLHashSHA1.update (&hashctx, &signedParams)) 0) goto fail: goto fail; .. other checks... buffer frees (cleanups). return erri The code fragment contains unreachable code. Circle the unreachable codels a. b. Why this unreachable code caused security vulnerability? What kind of attack was possible because of this vulnerability? Given an example of a tool that can detect this kind of bug, Is it a security specific tool or non-security specific tool? c. 3/8