First off do you mean the game tetris? If so here is the answer:
Tetra is a prefix which means “four” and is used when forming compound words. In tetris, we use pieces (called tetrominos), which are formed by combining 4 small blocks (called minos). There are 7 possible types of tetrominos named after the letters that they resemble: I, O, L, J, T, S, and Z.
The two associated ideas that the author (Carson McCullers) relate from story "Loneliness" is the creation of individual identity and the need of people to belong in something. The story actually talks about how Americans do not like to be lonely or isolated.
A) According to Elana Martin, company spokesperson, "the error has not been traced to its ultimate source."