Lol I need help I don't get it. My question is attached below.

How many people in the world’s economy work in “system d”?

Read the paragraph and answer the question that follows: the town of belmond, iowa, needs to add weather sirens. the loud and steady wail would warn citizens of approaching danger. if past history is an indication, the sirens will save hundreds of lives. with a prediction of a deadly storm season, the alert which sentence should be revised to eliminate redundancy? the town of belmond, iowa, needs to add weather sirens. the loud and steady wail would warn citizens of approaching danger. if past history is an indication, the sirens will save hundreds of lives. with a prediction of a deadly storm season, the alert system is needed immediately.

Match the following items 1. formed by theodore roosevelt in 1912 2. republican president 3. a person who currently holds an office 4. democratic president 5. formed by ross perot in 1992 6. to yield or surrender; admit or acknowledge options; a. jimmy carter b. dwight d. eisenhower c.bull moose party d. united we stand party e. concede f. incumbent