Claudia Ltd had the following ratios at 31 December 2019 and 31 December 2018: Which one of the following statements is true? 2019 2018 Operating Profit 28% 25% Payable Days 30 days 35 days Receivable Days 22 days 26days Select one O a. The average length of time between goods being purchased and Claudia Ltd paying for those goods, is 52 days in 2919 O b. Claudia Ltd is collecting in its debts from customers more quickly in 2019 than in 2018 O c. Claudia Ltd is paying its trade payables 4 days more quickly in 2019 than in 2018. Od. The operating profit margin made by Claudia Ltd has decreased in 2019 from 2018