APPSC Group-I Preliminary Exam 2008 Solved Paper

Seven students A, B, C, D, E, $\mathit{F}$ and $\mathit{G}$ take a series of tests. No two students get the same marks. $\mathit{G}$ always scores more than $\mathit{A}$. $\mathit{A}$ always scores more than B. Each time either $\mathit{C}$ scores the highest and $\mathit{E}$ gets the least, or alternatively, D scores the highest and $\mathit{F}$ or $\mathit{B}$ gets the least If $\mathit{D}$ is ranked second, which of the following can be true?