Which codon codes for start and methionine (MET)?
A- AAC
B-AGU
C- UGA
D- AUG

Answer:
D) AUG
Explanation:
A) false-- AAC codes for Asn
B) false-- AGU codes for Ser
C) false-- UGA is a stop codon
D) true
To read such a table, the one of the right (my preferred choice) , you start by selecting a letter on the left side, then the second letter from the top, and the third from the right side.
Hope this helps! :)