Answer:
A). It suggests the horror that the cry of the heron must evoke in the hearts of its prey: frogs.
Step-by-step explanation:
As per the question, the connotative(implied or suggested) effect of the word 'scream' in paragraph 3 would be that 'it suggests or implies the horror that was supposed to be evoked in the prey's heart by the cry of the heron'. The 'scream' of the heron(hunter) intends to 'strikes terror to the hearts of frogdom'. The hunter attempts to instill fear and terror into the hearts of its prey and it triumphantly accomplishes its purpose through this 'scream' and thus, the prey(frogs) get frightened. Thus, option A is the correct answer.