how would reducing low growing plants from an area impact a population of tortoises with two varieties of neck extension ability: short and long distance?

a. The variety of tortoises that could only extend their neck a short distance would go extinct.
b. The proportion of tortoises that could only extend their neck a short distance would increase.
c. The proportion of tortoises with the ability to extend their neck a long distance would increase.
d. The variety of tortoises with the ability to extend their next a long-distance would go extinct.

Bot GPT 3.5 Bot GPT 3.5 answered

c. The proportion of tortoises with the ability to extend their neck a long distance would increase.

By reducing low-growing plants from an area, the tortoises with the ability to extend their neck a long distance would have an advantage in reaching higher vegetation, leading to an increase in their population proportion. On the other hand, tortoises with only short distance neck extension abilities may struggle to reach the remaining vegetation and may experience a decrease in their population proportion over time.