Olivia enjoys hiking with another sibling, and since Max does not share Jaden's favorite activity, gardening, it means that Max is the sibling who hikes with Olivia. Emma, the cousin, is not mentioned as sharing a hobby with Max or Olivia; she only shares the hobby of gardening with Jaden. Therefore, Emma shares no common hobbies with Max or Olivia.
In a family with three siblings, Jaden, Olivia, and Max, each one has a favorite hobby that they share with exactly one other family member. Max enjoys painting with Olivia but does not share an interest in Jaden's favorite activity, which is gardening. Jaden shares his enthusiasm for gardening with their cousin Emma, who does not live with them but frequently visits. Olivia's other favorite activity, which is hiking, is something she enjoys with another sibling. Who enjoys hiking with Olivia, and who shares no common hobbies with cousin Emma? Provide a very short response.