Sonia is married and earns $$15,000$ per month. She is paid monthly and places $10\%$ of her salary into a retirement account. She also pays $$129$ per month in insurance and places $$200$ per month into a flexible spending account $.$ All her deductions for retirement and insurance are pre $-$tax. Sonia claims zero dependents on her W$-4.$ Find Sonia's net pay $.$ And How much did Sonia pay in Social Security Taxes $?$ Group of answer choices $ $9,114\mathrm{.}00$ I $ $9,799\mathrm{.}22$ $ $7,823\mathrm{.}57$ $ $13,850$