Which fact provides support for the "nature" side of the nature/nurture debate and why? A :
Failed attempts to teach chimpanzees how to use human sign languages demonstrate that nature is often inflexible to environmental input.

B :
Hopi infants are often carried in a cradleboard and therefore do not crawl and walk freely on the ground, but their motor skills by age one are very similar to those of other infants who have not been restrained. This demonstrates that the maturation of motor development is programmed.

C :

Ducklings imprint the first moving object they see after they are born, even if this object is a human or a robot, which demonstrates that the environment context is more important than other factors.

D :
Genie, the "wild child," was isolated and abused for many years, but she was still able to learn a language after she was rescued because the human brain is programmed for linguistic abilities.

Samuel is a 63-year-old single man who works full time in a food processing plant. he has a history of esophageal cancer, which was treated successfully with anti-cancer drugs and surgery four years ago. his weight had been stable at 135 pounds until 6 months ago. since then, he has experienced an involuntary weight loss of 10 pounds. he complains of a poor appetite and being overly weak, tired, and irritable. he also complains of cracks at the corners of his mouth and a chronic sore throat, which concerns him, given his cancer history. his usual diet is fairly consistent. he states that he rarely eats breakfast because he starts work at 6 a.m. he eats two deli meat sandwiches, "usually pastrami or salami," and a soda at 10 a.m., and may eat a candy bar in the afternoon when he gets off work. he often prepares and eats a frozen dinner or pizza at home in the evening and routinely drinks "about four or five beers" before going to bed. occasionally, he cooks roast and mashed potatoes for dinner and may have cereal with milk for a snack before bed. he rarely eats vegetables or fruit. 1. considering samuel's alcohol consumption, which b vitamin may he be deficient in? a. pantothenic acid b. niacin c. riboflavin d. biotin e. thiamin