The sentence structure requires the near future tense ("going to rain") to indicate a forecast. The correct form is "va a llover" (it is going to rain), which uses the formula ir a + infinitive. - Option A ("va a") correctly follows the structure: mañana también va a llover (tomorrow it is also going to rain). - Option B ("ir a") is the infinitive form and grammatically incorrect here. - Option C ("está") would require the gerund (lloviendo), e.g., está lloviendo (it is raining), but the sentence already uses llover (infinitive). - Option D ("será") uses the simple future tense, but "será llover" is nonsensical. Example:Hoy está lloviendo. Y mañana también va a llover.(It’s raining today. And tomorrow it’s also going to rain.) This construction aligns with the common Spanish future expression ir a + infinitive for planned or predicted actions.