Explanation:

- Option 1: Uses "had been," implying the shattering occurred prior to the current context. It creates a past-perfect tense.

- Option 2: Repeats "that" twice by mistake, making it grammatically incorrect.

- Option 3: Uses "have completely shattered," which is present perfect tense, implying an ongoing effect.

- Option 4: Uses "have been," properly matching the context in which the expectations were continuously affected. It maintains correct tense and completeness in expression.

The correct answer is:

Option 4: Ms. Vadra said that this election is about a crore of families, whose expectations have been completely shattered.