Question:
Who was the head of Nantou County in Jan, 1974?

Context:
 Lin Yuan-lang is the head of the government of Nantou County from Dec, 1989 to Dec, 1997. 
 Liu Yu-you is the head of the government of Nantou County from Feb, 1973 to Dec, 1981. 
 Lin Ming-chen is the head of the government of Nantou County from Dec, 2014 to Dec, 2022. 
 Peng Pai-hsien is the head of the government of Nantou County from Jan, 2001 to Dec, 2001. 
 Lin Tsung-nan is the head of the government of Nantou County from Dec, 2001 to Dec, 2005. 
 Meng Fan-chao is the head of the government of Nantou County from Dec, 1981 to Dec, 1981. 
 Yang Chao-pi is the head of the government of Nantou County from Jun, 1964 to Nov, 1966. 
 Lin Yang-kang is the head of the government of Nantou County from Feb, 1967 to Jun, 1972. 
 Wu Den-yih is the head of the government of Nantou County from Dec, 1981 to Dec, 1989. 
 Lee Chao-ching is the head of the government of Nantou County from Dec, 2005 to Nov, 2012.

Answer:
Liu Yu-you