Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.
Q: Context: Nevertheless, the Marder II (and similar Marder III) provided a great increase in firepower over contemporary German tanks during 1942 and into 1943. 
 Question: Which was the official year for the approval of Marder II?
A: 
1942