Question

what is the arrow is pointing to? pedigree chart with a red arrow pointing to a shaded square options: an unaffected female, an unaffected male, an affected male, an unaffected female

Explanation:

In a pedigree chart, squares represent males and circles represent females. Filled (dark) symbols represent affected individuals, and empty (white) symbols represent unaffected individuals. The arrow points to a filled square, so it's an affected male.

Answer:

C. an affected male (assuming the third option is labeled as such; if options are A - D with the third being "an affected male", then the answer is the option with "an affected male")