A summary about the article Focus on Bombs Suspect Brings Tears and a Plea.

the answer can be "credo" it means to believe = the word credo means "an official statement of beliefs"

i cannot see any of the options

sentence lenght varies according to word choice.you select which word to use and that will require to use other expressions that collocate with the word chosen.sentence length will vary   according to the choice of words you make to express your ideas.  

awnser: william shakespeare was an english poet, playwright, and actor, widely regarded as the greatest writer in the english language and the world's pre-eminent dramatist.