According to the table, it's just doubling, so, the series will be written as:

Since you know values up to 4, you can just double the values until you get to 8. So, 96*2 = 192. 192 * 2 = 384. 384 * 2 = 768. And for the thing in 8 months, 768 * 2 = 1536. So, your answer is H.