The correct answer is (a).
According to Section 245 of the Civil Procedure Code, 1908, the court shall pronounce judgment as soon as possible after the conclusion of the hearing. However, if the court is unable to pronounce judgment immediately, it may fix a date for pronouncing judgment. The date fixed for pronouncing judgment shall not ordinarily be beyond 60 days from the date of conclusion of hearing.
Option (b) is incorrect because the maximum time limit for fixing a date for pronouncing judgment is 60 days, not 30 days.
Option (c) is incorrect because the maximum time limit for fixing a date for pronouncing judgment is 60 days, not 90 days.
Option (d) is incorrect because the court is not free to fix any date for pronouncing judgment. The date fixed for pronouncing judgment shall not ordinarily be beyond 60 days from the date of conclusion of hearing.