Which of the following groups of employees is not covered by social security insurance? select one: a. self-employed persons b. clergy c. most military personnel d. railroad workers?

Paddock pools constructed a swimming pool and deck for the jensens' home. paddock installed the wrong trim on the pool. it would cost $2800 to change the trim-one-fifth of the total cost of the pool. the jensens refuse to pay anything for the pool. the paddock's best defense is: (a) duress (b) substanial performance (c)mistake (d) failure of conditions