hello could i please have an explanation for the following question

Use the price-demand equation below to determine whether demand is elastic, is inelastic, or has unit elasticity at the indicated values of p. x=f(p)=1560-4p-0.1p2 (A) p=60 (B) P=35 (C) p=80 (A) Describe the demand's elasticity for the given price-demand equation at p = 60. Choose the correct answer below. 0 Elastic O Inelastic O Unit Elastic (B) Describe the demand's elasticity for the given price-demand equation at p = 35. Choose the correct answer below. 0 Unit Elastic 0 Elastic O Inelastic (C) Describe the demand's elasticity for the given price-demand equation at p = 80. Choose the correct answer below. 0 Inelastic Click to select your