Arrange the following stages of formation of petroleum deposits from initial to last:
A. Migration
B. Generation
C. Seepage
D. Accumulation
Choose the correct answer:

Correct option is C

The formation of petroleum deposits follows a specific sequence of stages, as outlined below:

1. Generation (B): This is the initial stage where organic materials (mostly from dead plants and animals) are subjected to heat and pressure over millions of years, converting them into hydrocarbons (oil and gas).

2. Migration (A): Once hydrocarbons are formed, they begin to migrate from the source rock (where they were formed) to porous rock layers (reservoirs) due to pressure differences.

3. Accumulation (D): As the hydrocarbons migrate, they accumulate in a reservoir rock, where they are trapped by non-permeable rocks (cap rocks) above, creating petroleum deposits.

4. Seepage (C): In this final stage, petroleum can escape from the reservoir rock through natural cracks and fissures in the Earth's surface, leading to surface oil seeps.

Thus, the stages of petroleum formation in the correct order are:

(B) Generation → (A) Migration → (D) Accumulation → (C) Seepage