From a biological perspective, age can be influenced by various factors such as lifestyle, health conditions, and overall fitness. In this case, Lunga is active, maintains a healthy lifestyle, and does not appear to have any significant health issues. In contrast, Penny is overweight, does not exercise, and has health conditions like asthma and type 2 diabetes, which could contribute to an accelerated biological aging process.
Given these considerations, it could be argued that Penny may be "older" biologically due to her health conditions and lifestyle.
So, the most accurate answer would be:
Penny