1. You are on a tight budget and need to decide among the following 3 texting plans:Plan A: Pay $0.10 per textPlan B: Pay a fixed monthly fee of $15 for up to 500 texts per month and $0.08 for each text over the 500.Plan C: Pay a fixed monthly fee of $25 for up to 1 000 texts per month and $0.05 for each text over the 1 000.Requirementsa. Draw a graph of the total monthly cost of the three plans for different levels of texting.b. Which plan should you choose if you expect to make:i. 240 texts per month?ii. 780 texts per month?iii. 1 250 texts per month?