Bertha is transferred to the hospice unit. she remains weak and disoriented, and subtle vital sign changes indicate that the dying process has begun. under the guidelines of bertha's living will, no lifesaving measures are ordered. care measures are instituted to keep bertha comfortable. she develops cheilosis and stomatitis. what nursing intervention should be instituted to care for bertha's mouth?
a. giver her sips of water through a straw.
b. offer her an ounce of ice chips every hour.
c. provide mouth care daily with her bath.
d. clean her mouth frequently with oral swabs.