i am struggling to understand it, please elaborate

Q7. The price of money today in terms of money next year is... i. Equal to 1 + i only if the real interest rate is zero. ii. Equal to 1 + 7: only if the real interest rate is zero. iii. Equal to 1 + i only if the ination rate is zero. iv. Equal to 1 + 1" only if the ination rate is zero. A] i. is true, ii. is true, iii. is true, iv. is true B] i. is true, ii. is true, iii. is true, iv. is false C) i. is true, ii. is true, iii. is false, iv. is true D) i. is true, ii. is true, iii. is false, iv. is false E) i. is true, ii. is false, iii. is true, iv. is true F) i. is true, ii. is false, iii. is true, iv. is false G) i. is true, ii. is false, iii. is false, iv. is true H) i. is true, ii. is false, iii. is false, iv. is false I] i. is false, ii. is true, iii. is true, iv. is true I) i. is false, ii. is true, iii. is true, iv. is false K] i. is false, ii. is true, iii. is false, iv. is true L) i. is false, ii. is true, iii. is false, iv. is false M] i. is false, ii. is false, iii. is true, iv. is true N] i. is false, ii. is false, iii. is true, iv. is false 0] i. is false, ii. is false, iii. is false, iv. is true P] i. is false, ii. is false, iii. is false, iv. is false Answer: K Source: This question com es from the chapter 3 of the textbook. Explanation: As noted in the first line of the chapter 3 summary, 1 + i is the price ofmoney today in terms ofmoney next year. So i. and iii. are false, because of the "only if\" qualifiers. Additionally, since i = T + 11:, ii. and iv. are also true [but only with the "only if\" qualifiers]