Judy belongs to a contributory, defined benefit pension plan, where her contribution is set at 5% of contributory earnings. According to the terms of her pension plan, her pensionable earnings include only her basic salary. Her basic salary last year amounted to $45,000. She also earned $5,000 in overtime pay, and received a bonus of $3,000. How much was Judy required to contribute to the pension plan last year?

O a) $2,250

O b) $2,400

O c) $2,500

O d) $2,650