alternative    a. the branch of anthropology that studies prehistoric people and their cultures
tentative    b. in spite of everything; dis-regarding drawbacks
interrupt    c. uncertain; hesitant
sharpen    d. the choice between two mutually exclusive possibilities
ample    e. to take for granted; accept without proof; suppose
archaeology    f. to break the continuity or uniformity of sth.
assume    g. large in degree, kind, or quantity
regardless    h. to make or become sharp or sharper
at most    i. dirty, confused, or untidy
messy    j. not more than