Based on the phylogenetic tree shown, which species is most closely related to *Bos taurus*?

• A. *Sus scrofa*
• B. *Bos indicus*
• C. *Capra hircus*
• D. *Ovis aries*

Answer: (B)

Verified step by step guidance

1. Examine the phylogenetic tree provided in the problem. A phylogenetic tree is a diagram that represents evolutionary relationships among species based on shared common ancestors.
2. Identify the position of *Bos taurus* on the tree. Look for the branch or node where *Bos taurus* is located.
3. Determine which species shares the most recent common ancestor with *Bos taurus*. The species that is connected to *Bos taurus* by the shortest branch or node is the most closely related.
4. Compare the positions of *Sus scrofa*, *Bos indicus*, *Capra hircus*, and *Ovis aries* relative to *Bos taurus*. Focus on the branching points to see which species diverged most recently from *Bos taurus*.
5. Conclude that the species sharing the most recent common ancestor with *Bos taurus* is the one most closely related. This conclusion is based on the principle that closer nodes indicate more recent evolutionary divergence.