Given the task definition and input, reply with output. The task is to generate the correct answer for a given math problem.

Problem: what will be the cost of gardening 1 meter boundary around a rectangular plot having perimeter of 340 meters at the rate of rs . 10 per square meter ?
rs . 3440', 'c ) rs . 3450', 'd ) rs . 3460', 'e ) rs . 3490'