Matching disclosures to situations

In the blank to the left of each statement, fill in the letter from the following list which best describes the treatment of the item on the financial statements of Sora Inc. for the current year ending December $31,2023$:

a$)$ Change in accounting policy requiring retrospective application

b$)$ Change in estimale

c$)$ Correction of error

d$)$ None of the above

$q,1.$ In $2023,$ the company changed its method of recognizing income from the completed$-$contract method to the percentage$-$of$-$completion method.

$2.$ At the end of $2023,$ an audit revealed that the corporation's allowance for doubtful accounts was too large and should be reduced to $2\%.$ When the audit was performed in $2022,$ the allowance seemed appropriate. $q,3.$ Depreciation on a truck, acquired in $2019,$ was understated because the service life had been overestimated. The understatement had been made in order to show higher net income in $2020$ and $2021.q,4.$ The company switched from average cost to FIFO inventory costing during the current year. $q,5.$ In $2023,$ Sora introduced a new pension plan for its employees, which included past service costs of $$50,000.$ It decided to recognize the $$50,000$ as part of its $2023$ pension expense. $q,6.$ During $2023,$ a long$-$term bond with a carrying value of $$3,600,000$ was retired at a cost of $$4,100,000.q,7.$ After negotiations with Canada Revenue Agency, income taxes owing for $2022$ were established at $$42,900.$ They were originally estimated to be $$28,600.q,8.$ In $2023,$ the company incurred interest expense of $$29,000$ on a $20-$year bond issue. $q,9.$ In calculating the depreciation in $2021$ for buildings, an error was made which overstated income in that year by $$75,000.$ The error was discovered in $2023.$

$10.$ In $2023,$ the company changed its method of depreciating plant assets