Inqubo yokushisela ye-arc enezinhlangothi ezimbili ethuthukisiwe ingakwazi ukubona ukushisela endaweni engcono kakhulu, okungelula ukuba namaphutha njengokungahambi kahle, ukuphambuka kokushisela kanye nokungena okungaphelele, futhi kulula ukulawula ikhwalithi yokushisela.