Hello, can someone please help with this economics question?

\"5'i\" 19 You are given the following information for a country: population of working age 6 million; labour force Not vat saved 4 million; and employed 3.5 million. Based on this information, which of the following is correct? Marked out of 1-00 O a. The participation rate is approximately 67%. t7 Flag question 0 b. There are 2.5 million unemployed in this country. 0 c. The unemployment rate is approximately 8%. 0 d. The employment rate is approximately 88%