Comprehension Passage
Directions: Answer the questions based on the information given below.
A seller deals in only three types of articles namely 'A', 'B', and 'C'. The bar graph given below shows the average number of type 'A' and type 'B' articles sold, the number of type 'A' articles sold, and the number of type 'C' articles sold by the seller during four different months.
Note: Total number of articles sold in each month = Number of type 'A' articles sold + Number of type 'B' articles sold + Number of type 'C' articles sold

Find the respective ratio between the number of type 'C' articles sold in January and number of type 'B' articles sold in April.
1
1 : 1
2
2 : 3
3
3 : 2
4
3 : 4
5
4 : 3