Final answer:
William B. Travis declared in his letter during the Alamo siege that he would fight until victory or death (option d), indicating his refusal to surrender or retreat.
Step-by-step explanation:
In the excerpt from William B. Travis's letter, 'To the People of Texas and All Americans in the World,' Travis proclaims his determination to fight against the siege led by Santa Anna's forces at the Alamo.
It's clear from his words that Travis intended to resist the enemy until the end, stating, 'I shall never surrender or retreat.' This determination is underscored by his climactic declaration, 'Victory or death.'
Essentially, Travis stated his commitment to fight to the last, showcasing the spirit that remains emblematic of the Texas Revolution.
In response to the student's multiple-choice question, the correct option that Travis conveyed in his letter is d. that he would fight until he won or died.