Of the Following Older Individuals, Who Would Be Most Likely

Of the following older individuals, who would be most likely to show the cognitive functioning expected of the elderly?

A) Michele, who is skilled at cross-word and sudoku puzzles, but is slow at keyboarding
B) Cesar, who is being assessed for inclusion in an independent living facility
C) Norbert, who is challenging his grandson to a game of chess
D) Encio, who is preparing for a bridge tournament by practicing with his twin brother