Read the passage below and select the correct options (pronouns) that can replace the underlined portions. \[\underline{\mathbf{Q12}}\mathbf{.}\]did not finish the project by \[\underline{\mathbf{Q13}}\mathbf{.}\]The teachers and even the headmaster \[\underline{\mathbf{Q14}}\mathbf{.}\] helped \[\underline{\mathbf{Q15}}\mathbf{.}\] As for \[\underline{\mathbf{Q16,}}\]we completed \[\underline{\mathbf{Q17}}\] by\[\underline{\mathbf{Q18}\mathbf{.}}\] This fact, in \[\underline{\mathbf{Q19,}}\] should help \[\underline{\mathbf{Q20}}\] win the first prize.

• A. them
• B. her
• C. Us
• D. him