At what age are infants capable of demonstrating empathy for others, such as comforting and showing concern for others?

At "24 months or 2 years" infants capable of demonstrating empathy for others, such as comforting and showing concern for others

Explanation:

When the baby becomes 2 year old they develop a genuine empathy, and have the ability to understand that what other people feel may be they are not feeling the same. We can also conclude that, the babies not only can understand the pain of the people but also try to pacify in their own way. The trait of the empathy develop in the baby through early development. When they gets their limbs combinedly, hence babies will try to reach them and try to soothe others in distress.

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.