Which of the following conclusions is correct according to the given expression and symbols? \[a\,\Delta \,b\,\phi \,c\] \[a+b\,\theta \,c\] \[a\,\phi \,b\,\theta \,c\] \[b\,\theta \,c\,\square \,a\] \[c+b\times a\] \[a\times b\,\theta \,c\] Expression (qEq) and (qEr)

• A. pEr             
• B. pFr
• C. rBp                             
• D. rBq