Explanation:

- Statement (1): English is described as a language that isn’t originally from India.

- Statement (2): Despite its foreign origins, English is widely used across the country.

- Statement (3): India ranks second globally in terms of the number of English speakers, although not natively.

- Statement (4): The reach of English surpasses any single Indian language, highlighting its extensive usage.

- Statement (5): The word needed should imply how English has spread throughout the world.

- Option 1: "Saturate" means to fill completely, which doesn’t convey spreading but rather reaching a limit.

- Option 2: "Invade" implies a hostile takeover, which isn’t appropriate in this context.

- Option 3: "Persuade" means to convince, and isn't related to spreading across the globe.

- Option 4: "Pervade" means to spread through or be present throughout, which fits perfectly.