South opened 1D. West had two choices. She could overcall 1S, planning to bid clubs later, or she could double. You should double without support for all three unbid suits only if you have a sensible course of action after any response from partner. It is not clear with West’s hand which is the better choice, but I would choose 1S.
West doubled at the table and North passed leaving East with an unenviable choice. You can pass, sitting under the opening bidder, only if you have a stronger trump suit than opener. 1NT requires at least seven points. That leaves 1H and 2C. The 1H bid is viable with only three hearts because it is made at the lowest level. I prefer 2C because the doubler probably has a 4-card heart suit and might take the partnership to an uncomfortably high level in competition; 2C stands to be far less exciting.
At the table, East panicked and passed. The contract was made with two overtricks so N-S scored 340, rather better than a part score in hearts.