Bankstown Limited was involved in a highly successful plastics manufacturing business. It commenced a project to design a more efficient extrusion system for its plastic pipes. The following outlays occurred: September: researcher salaries $30000; October: research materials $40000; November: re-development of the extrusion plant $250000; December: final adjustments to the extrusion plant $25000. The amount to be expensed by Bankstown Limited at the end of the financial year, 31December, is:

$30 000

$70 000

$250 000

$275 000