**Core Concept**
Bile acids are synthesized in the liver from cholesterol and play a crucial role in the emulsification and absorption of dietary fats. Primary bile acids are produced in the liver through the conversion of cholesterol, while secondary bile acids are produced by the action of intestinal bacteria on primary bile acids.

**Why the Correct Answer is Right**
The correct answer is **Cholic acid** and **Chenodeoxycholic acid**. These two bile acids are synthesized in the liver through the action of enzymes such as cholesterol 7α-hydroxylase and sterol 12α-hydroxylase. Cholic acid is produced through the action of the enzyme cholesterol 7α-hydroxylase, while chenodeoxycholic acid is produced through the action of the enzyme sterol 12α-hydroxylase. These primary bile acids are then conjugated with glycine or taurine to form bile salts, which are essential for the emulsification and absorption of dietary fats.

**Why Each Wrong Option is Incorrect**
* **Option B:** **Bile acids synthesized in the liver (primary bile acids) include** **Deoxycholic acid**, **which is a secondary bile acid produced by the action of intestinal bacteria on primary bile acids.**
* **Option C:** **Bile acids synthesized in the liver (primary bile acids) do not include** **Lithocholic acid**, **which is a secondary bile acid produced by the action of intestinal bacteria on primary bile acids.**
* **Option D:** **Bile acids synthesized in the liver (primary bile acids) do not include** **Taurocholic acid**, **which is a conjugated bile salt formed from cholic acid and taurine.**

**Clinical Pearl / High-Yield Fact**
It's essential to remember that primary bile acids are synthesized in the liver, while secondary bile acids are produced by the action of intestinal bacteria on primary bile acids. This distinction is crucial in understanding the pathophysiology of liver diseases and the role of bile acids in the emulsification and absorption of dietary fats.

**Correct Answer: C. Cholic acid and Chenodeoxycholic acid**