Question:
Which position did Bonar Law hold in Apr, 1910?

Context:
 Bonar Law holds the position of Lord Privy Seal from Jan, 1919 to Apr, 1921. 
 Bonar Law holds the position of Member of the 29th Parliament of the United Kingdom from Jan, 1910 to Nov, 1910. 
 Bonar Law holds the position of Member of the 32nd Parliament of the United Kingdom from Nov, 1922 to Oct, 1923. 
 Bonar Law holds the position of Prime Minister of the United Kingdom from Oct, 1922 to May, 1923. 
 Bonar Law holds the position of Member of the 28th Parliament of the United Kingdom from May, 1906 to Jan, 1910. 
 Bonar Law holds the position of Leader of the Conservative Party from Jan, 1911 to Jan, 1921. 
 Bonar Law holds the position of Chancellor of the Exchequer from Dec, 1916 to Jan, 1919. 
 Bonar Law holds the position of Leader of the Opposition from Nov, 1911 to May, 1915. 
 Bonar Law holds the position of Member of the 31st Parliament of the United Kingdom from Dec, 1918 to Oct, 1922. 
 Bonar Law holds the position of Leader of the House of Commons from Dec, 1916 to Mar, 1921. 
 Bonar Law holds the position of Member of the 30th Parliament of the United Kingdom from Mar, 1911 to Nov, 1918. 
 Bonar Law holds the position of Member of the 27th Parliament of the United Kingdom from Oct, 1900 to Jan, 1906.

Answer:
Member of the 29th Parliament of the United Kingdom