Choose the correct alternative out of four options for the part of the sentence given in quotes:
The gas 'is being seeping' out of the rocks.

Correct option is A

The correct option is (a) Is seeping.
Explanation: The correct verb form should be "is seeping," which follows the correct present continuous tense pattern. "Is being seeping" is incorrect as "being" is redundant here.
Example: Water is seeping through the cracks.
Meanings of other options:
Is seep: Incorrect as it uses the base form of the verb.
Was being seeping: Incorrect tense combination.
No improvement: Not applicable.