Debra is studying the growth of a particular type of plant. She is testing the effects of three growth factors: lighting, age, and temperature. Here are the levels she's testing for each. Growth factor Levels Lighting None, Low, Medium, High, Very high Age 1 month, 2 months, 3 months, 4 months, 5 months, 6 months Temperature 20 C, 22 .C, 24 .C, 26 .C, 28 .C She wants to find the number of ways of combining one level from each of the growth factors. How many ways are there? K X 5