Which statement best describes an economic reason why israel has a 97.1% literacy rate compared to a literacy rate of 79.4% in iran? a) israel is smaller in size than iran and can afford more teachers. b) israel spends a smaller percentage of its gdp on education than iran does. c) israeli law calls for mandatory education up to age 18, while iranian law does not. d) israel spends approximately 10% of its gdp on education while iran spends 4.6% of its gdp.