Comprehension Ability

The sentence "Sohan was too weak to play" implies that Sohan's weakness prevented him from playing. The structure "too...to..." indicates an excessive degree of weakness that stops him from engaging in the activity of playing. Now, let's analyze the given options:

Option A: Sohan was so weak that he could not play.

This option essentially means the same thing as the original sentence. It conveys that Sohan's level of weakness prevented him from playing. The use of "so...that..." effectively translates the meaning of "too...to...". Hence, Option A is correct.

Option B: Sohan was as weak as he could not play.

This sentence is structurally incorrect and does not convey the same meaning as the original sentence. The phrase "as weak as" is not appropriately followed by the clause "he could not play".

Option C: Sohan was very weak because he could not play.

This sentence implies that Sohan's weakness is a result of his inability to play, which is the opposite of the original meaning. The original sentence means his weakness prevented him from playing, not the other way around.

Option D: Sohan was so weak as he could not play.

Similar to Option B, this sentence is grammatically incorrect and does not convey the same meaning as the original sentence. The structure "so...as" is not used correctly here.

Therefore, the correct option is Option A: Sohan was so weak that he could not play.

The need for an effective population policy is an urgent necessity in the country's planning strategy. Hence, option (b) is the correct answer.

The development of human resource and the building up of an institutional framework would have to receive priority attention.

The Centre and the State Government must become partners in the planning process to determine national priorities together. Hence, the statement given in option (c) is not correct.

Domestic economic situation and world trends would force the planning process to undergo a change.

Important changes in the international scene is implied by the expression 'momentous trends'.