The answer is B: involvement in Leisler's Rebellion.
Explanation for each option:
A. Starving to death: This is a valid concern. Richard Frethorne, an indentured servant in early Virginia, wrote letters describing the severe food shortages and the threat of starvation faced by colonists.
B. Involvement in Leisler's Rebellion: This is not a concern for someone living on a plantation in early Virginia. Leisler's Rebellion occurred in New York between 1689 and 1691, long after the time of Richard Frethorne, who lived in the early 1620s. Therefore, it is not relevant to his situation.
C. Attacks by the Pamunkey tribes: This would be a concern. The Pamunkey were part of the Powhatan Confederacy, which had conflicts with English settlers in Virginia during the early 17th century, including the period when Frethorne lived.
D. Disease: This is a valid concern. Early Virginia settlers faced numerous health challenges, including outbreaks of diseases such as malaria and dysentery, which were common and deadly in the colony.