122. C. "Capuchin monkeys have been observed using tools in a broad variety of contexts, but their use of tools had been limited to the application of a single type of tool to solve a specific problem..."
123. A
124. D "Nine capuchins were divided into two groups. "
125.B
126. B
127. A. "A trial began when a capuchin approached the container and ended when the animal no longer showed interest in the task"
128. C. talk about a "process"
129. D
130. A. "The six capuchins that did not use tools obtained some food by retrieving nutmeat dropped by the other capuchins or left in the apparatus. "
131.C. "The results of the study provide further evidence of the extensive tool-using capabilities of capuchin monkeys"